John:
I was having some difficulty with your english. But that is not to complain. I glad you did post in english.
Part of my answer above touches on your post.
"JW (and I prefer "WT") premises" are not necessarily correct.
But besides that, in my opinion, complete "free will" only exists with God himself. Everyone else's "free will" is limited, at best.
For example, humans might be "free" to chooses what they want to eat and when to eat. But they do not have the freedom to 'not eat.' If they attempt to 'not eat,' eventually, they lose what 'free will' they did have, by dying.
In that sense, it might be said that God gave up some of his 'complete free will' when he created other creatures.
This could be analogized by means of a single man.
As a single man, he has a certain amount of freedom.
But when he marries and has children, he concedes some of that freedom in favor of taking care of his family.
And some of that conceded freedom is bestowed on his wife and children, who gain that measure of freedom due to their relationship with the father.
You said:
Let me explain my idea:
1- Every being must possess free will.
2- If there is free will, there is the choice to evil.
3- If there is choice to evil, it can happen.
4- A perfect being can choose evil.
My response would be:
1- Every being must possess SOME free will.
2- If there is free will, there is the choice [of] evil.
This is evident from the Bible's early accounts in the Garden.
3- It there is the choice of evil, it can happen.
4- A perfect being can choose evil.
Which also means that a perfect being can choose good.
But I think a point missed is that, conceptually speaking, a perfect person can make a permanent choice. Otherwise, they might not be perfect. Certainly, in Satan's case, his choice was permanent. At least the Bible gives no indication of any change of heart on his part, despite what has happened since he chose bad.
Consider the case of the other angels. According to the Bible, many of them chose "evil" prior to the flood. Since then, there are no more indications in the Bible of any angelic deflections. Just going by the Bible record, all the angels had the opportunity to do "evil." The ones that did, stayed "evil." And the ones that did not, stayed "good." Just going by what the Bible says, they each, apparently, made a permanent choice.
Also, in Jesus case, he, as a perfect person, was tempted, implying that he could choose bad (like you said). But the Bible then speaks of him as having 'learned obedience' and being 'made perfect' from his experience. (Heb 5:8) And the Bible presents him as incorruptible. (2 Tim 1:10)
Thus, if God were to remake the universe so that it only contained perfect creatures who have made a permanent choice to do only good, then, you would, theoretically speaking, reach a point where "evil cannot happen" (contra number "3" above.)
Would it be possible that the humans in Revelation, having been made perfect thru Jesus' sacrifice, and then faced with a temptation of similar magnitude as the angel's faced prior to the flood, that they, all of them, make a permanent choice?
On the other hand, even then, if "evil can [still] happen," you could reach a point where all "evil" has been tried out and found wanting via past precedent. And so, if 'evil did happen,' it would not have to be tolerated for any length of time, as it is now.
At any rate, that is a possible reply to your thesis.
Take Care, John