Scriptural evidence for the ministry, yes. Scriptural evidence that all Christians should be preachers? Let's take your references one by one:
(Isaiah 61:1) . . .The spirit of the Sovereign Lord Jehovah is upon me, for the reason that Jehovah has anointed me to tell good news to the meek ones. He has sent me to bind up the brokenhearted, to proclaim liberty to those taken captive and the wide opening [of the eyes] even to the prisoners;
Prophecy applied specifically to Christ (he applied it to himself)
(Matthew 9:35) . . .And Jesus set out on a tour of all the cities and villages, teaching in their synagogues and preaching the good news of the kingdom . . .
Who was preaching? Jesus.
(Matthew 24:14) . . .And this good news of the kingdom will be preached in all the inhabited earth for a witness to all the nations; and then the end will come.
Doesn't answer by whom.
(Matthew 28:19) . . .Go therefore and make disciples of people of all the nations. . .
Spoken to whom? Those he met in Galilee. There are differences of opinions as to how many Christ was talking to: the 11 or 500.
(Mark 16:15) . . .And he said to them: "Go into all the world and preach the good news to all creation.
Who is "them"? Specifically, the 11 (verse 14). Incidentally, this is part of the long conclusion of Mark 16, now removed from the RNWT.
(Luke 9:2) And so he sent them forth to preach the kingdom of God
Who is "them"? Specifically, the 12. Noteworthy, you left off the rest of the verse here, so if this applies to everyone, then everyone must also do what the rest of the verse says. The verse, in its entirety says: "And so he sent them forth to preach the kingdom of God and to heal".
(1 Corinthians 9:16) . . .If, now, I am declaring the good news, it is no reason for me to boast, for necessity is laid upon me. Really, woe is me if I did not declare the good news!
When does "I" translate to "everyone"? Also, Paul was appointed to preach.
(Colossians 1:25-28)...I became a minister of this [congregation] in accordance with the stewardship from God which was given me in YOUR interest to preach the word of God fully, the sacred secret that was hidden from the past systems of things and from the past generations. But now it has been made manifest to his holy ones, to whom God has been pleased to make known what are the glorious riches of this sacred secret among the nations. It is Christ in union with YOU, the hope of [his] glory. He is the one we are publicizing, admonishing every man and teaching every man in all wisdom, that we may present every man complete in union with Christ.
Same thing: when does "I" translate to "everyone"? Who is "we"? Answer in verse 1: Paul and Timothy. When does "we" translate to "you all" or "everyone" or "every follower of Christ" or "all true Christians"?
(Titus 1:2-3) . . .upon the basis of a hope of the everlasting life which God, who cannot lie, promised before times long lasting, whereas in his own due times he made his word manifest in the preaching. . .
You're too funny. Leaving out the rest of the verse: ". . . made his word manifest in the preaching with which I was entrusted, under command of our Savior, God"
(Philippians 1:15) . . .True, some are preaching the Christ through envy and rivalry, but others also through goodwill.
Interesting verses here. Shows that anyone CAN preach, if they want to. The point Paul was making is that whomever is preaching the Christ, the job is getting done. I would never say someone CAN'T preach if they wanted to. This also indicates that JWs don't necessarily have a monopoly on preaching.
(2 Timothy 4:1-2) . . .I solemnly charge you before God and Christ Jesus, who is destined to judge the living and the dead, and by his manifestation and his kingdom, preach the word, be at it urgently in favorable season, in troublesome season, reprove, reprimand, exhort, with all long-suffering and [art of] teaching.
Who is Paul writing to? One person: Timothy.
(Acts 20:20) while I did not hold back from telling YOU any of the things that were profitable nor from teaching YOU publicly and from house to house.
Who was Paul talking to? Elders! He had them come down to Miletus from Ephesus. This was preaching in the congregation. And again, who is doing the preaching? Paul. One appointed to do so. This does not prove at all that it's the job of everyone to do so.
(Acts 28:30-31) . . .So he remained for an entire two years in his own hired house, and he would kindly receive all those who came in to him, preaching the kingdom of God to them and teaching the things concerning the Lord Jesus Christ with the greatest freeness of speech, without hindrance.
Again, Paul was appointed to preach.
(Romans 10:8-15) . . .But what does it say? "The word is near you, in your own mouth and in your own heart"; that is, the "word" of faith, which we are preaching. For if you publicly declare that ‘word in your own mouth,’ that Jesus is Lord, and exercise faith in your heart that God raised him up from the dead, you will be saved. For with the heart one exercises faith for righteousness, but with the mouth one makes public declaration for salvation. For the Scripture says: "None that rests his faith on him will be disappointed." For there is no distinction between Jew and Greek, for there is the same Lord over all, who is rich to all those calling upon him. For "everyone who calls on the name of Jehovah will be saved." However, how will they call on him in whom they have not put faith? How, in turn, will they put faith in him of whom they have not heard? How, in turn, will they hear without someone to preach? How, in turn, will they preach unless they have been sent forth? Just as it is written: "How comely are the feet of those who declare good news of good things!"
This one was part of my proof texts in argument FOR all preaching, though even then, it's not clear at all in what Paul is saying, so it's iffy at best.
(1 Timothy 4:16) . . .Pay constant attention to yourself and to your teaching. Stay by these things, for by doing this you will save both yourself and those who listen to you.
Letter was written specifically to Timothy.
(1 Thessalonians 2:4) . . .but, just as we have been proved by God as fit to be entrusted with the good news, so we speak, as pleasing, not men, but God, who makes proof of our hearts.
"We" = Paul and Silvanus and Timothy? Or Paul and whoever else was with him whom he was referring to when they were treated bady in Phillipi? This still doesn't charge all Christians to preach. It just says that "we have been proved by God as fit to be entrusted with the good news", speaking about himself and others with him.
(1 Corinthians 9:22)...to the weak I became weak, that I might gain the weak. I have become all things to people of all sorts, that I might by all means save some.
"I" = Paul
(1 Peter 3:15)...But sanctify the Christ as Lord in YOUR hearts, always ready to make a defense before everyone that demands of YOU a reason for the hope in YOU, but doing so together with a mild temper and deep respect.
"Ready to make a defense" does not mean "go out and preach to everyone". This verse is speaking about what one would do if one were suffering for the sake of righteousness (verse 14).
(Acts 1:8) but YOU will receive power when the holy spirit arrives upon YOU, and YOU will be witnesses of me both in Jerusalem and in all Ju·de´a and Sa·mar´i·a and to the most distant part of the earth."
Who is YOU? Everyone? Perhaps. Perhaps I should make this part of the proof texts in argument FOR.
(Romans 10:18) Nevertheless I ask, They did not fail to hear, did they? Why, in fact, "into all the earth their sound went out, and to the extremities of the inhabited earth their utterances."
Not even sure how to apply this one, so I withhold commenting for now.
(2 Corinthians 4:3-4) . . .If, now, the good news we declare is in fact veiled, it is veiled among those who are perishing, among whom the god of this system of things has blinded the minds of the unbelievers, that the illumination of the glorious good news about the Christ, who is the image of God, might not shine through.
"We" does not equal "everyone"
(Romans 11:13) Now I speak to YOU who are people of the nations. Forasmuch as I am, in reality, an apostle to the nations, I glorify my ministry,
"I", "my" does not equal "everyone"
(Revelation 14:6) And I saw another angel flying in mid heaven, and he had everlasting good news to declare as glad tidings to those who dwell on the earth, and to every nation and tribe and tongue and people,
JWs use this to apply to the preaching, stating that the angels are involved. Maybe they are, but this verse says "angel", singular. Still doesn't say "everyone".
(Romans 1:15-16) . . .so there is eagerness on my part to declare the good news also to YOU there in Rome. For I am not ashamed of the good news; it is, in fact, God’s power for salvation to everyone having faith, to the Jew first and also to the Greek;
"I" = Paul
(1 Corinthians 9:16) . . .If, now, I am declaring the good news, it is no reason for me to boast, for necessity is laid upon me. Really, woe is me if I did not declare the good news!
"I" = Paul. And, of course, he would say "woe is me" since he was appointed to preach!
(Acts 20:24) . . .Nevertheless, I do not make my soul of any account as dear to me, if only I may finish my course and the ministry that I received of the Lord Jesus, to bear thorough witness to the good news of the undeserved kindness of God.
"I" = Paul
My conclusion: There is no question that preaching has scriptural precedent and emphasis. The question is: by whom? Only a few verses remotely indicate that ALL Christians should be preachers, and even some of them are questionable as to whether that is so or not. Most verses don't indicate one way or another, and some verses clearly indicate that only SOME would be preachers, those that have the gift.