Hi Desi,
You ask a lot of good questions. The real crime of the WT is that they take the Bible, which I personally think is the word of God and distort it for their own selfish reasons. Even with the deplorable NWT, it is easy for a person who is fair minded but not emotionally tied to WT theology to see that the WT teaches many things that are either not in the Bible or against the clear teaching of the Bible. I don't say this to insult you, in fact I'm amazed that anyone who has been in and finally out of the WT would even have anything nice to say about the Bible or God. You seem to want answers and you are not going to be satisfied without proof and a reasonable explanation.
I think the question you are asking is why is there sin in the world and why does God chose to deal with it the way He does. The thing about it is, if you allow that the Bible teaches that Jesus is God, that He was with the Father in the beginning and that through Him all things that were created, were created by Him, then there is not a more loving thing that God could do for sinful man than to humble Himself and sacrifice His life at the cross. Then, as if that were not enough, God offers this salvation based of the shed blood of His Son as a free gift if only we will accept this gift by faith.
As a Bible believing Evangelical for 35 years, I have been either a member or regular attender of 8 or 9 different Bible church groups or demonimations and none of them have ever told me I must do anything besides believe on the Lord Jesus to be saved. I have 100s of books about the Bible and probably at least 100 Bibles in my collection and it's never a chore for me to open up a book and read about my Savior who gave His life so that I can be with Him forever. The Gospel message is very simple, man tries to make it complex. Simple is best.
I can say my dear Desi that the Bible has the answer and this is true. But I doubt that those words are helpful for you. But if you ask God to reveal himself to you, I know He will. If you ask Him, God will send someone to you who will demonstrate His love for you, just as He sent Peter to Cornelius in Acts Ch. 10. But prove all things by the Scriptures and be tough, demand proof because the Bible can stand up to anything man can throw at it.