No, I don't.
"Something conceivable better" can only be conceived within the realm of reality. Otherwise it is a fantasy.
I agree it can't entail a logical contradiction, but a state free of corruption is obviously not a logical contradiction.
A false preacher could claim that "something conceivable better" is a world where all men choose always the good and have no chance to make a bad decision. But that is a fantasy, because in such situation "man" would not be "man". It is intrinsic to man the ability to make moral choices.
What that preacher is saying is that in the ideal world men would not exist. That would be an entirely different debate.
Well, this is moving the goal posts, but I'll try to work with it. We cannot argue that something is corrupt cannot any longer be corrupt because then it would no longer be the same something, or because we just decide to define it as impossible ("fantasy").
We are arguing a hypothetical possibility. You are limiting God's ability and power. Do you disagree that God has the power to make everyone born good looking and healthy, because then that would be 'fantasy" and "no longer reality"?
This kind of argument that "something cannot be anything else hypothetically because then it is no longer that something" is just an appeal to naturalism, a God who cannot have done anything differently, the God who literally created it to begin with.
It makes literally no sense. You're defining omnipotence as "fantasy," you may as well continue and define God as "fantasy" and creation as "fantasy" and anything different than you can currently physically observe "fantasy," it's literally special pleading
In conclusion, I am not violating logic. You are resorting to fantasies to keep hanging from the thread of your theological understanding.
That thread will break.
However, God has a nice safety net for you.
The suffering of Jesus for my sin is my safety net, and I need no assurance from a deceived and lost soul, so keep them to yourself if you please.
You call the attributes of God a "fantasy."
I find that preposterous and unbelieving.