Are all atheists this ill-informed about religion?

[robvalue]

I don't see why it requires the omniscient being be a creator to preclude free will.

(I mean contra-causal free will is already an incoherent concept but that's beside my point).

I mean if Professor Xavier from the X-men had his powers boosted so he could hear all my future thoughts and decisions too, and he could know everything I was going to do before I did it... that would mean I wasn't free to do otherwise if he was truly correct in what I would do next on very occasion.

No, it's a good point. Either it's possible to know the future before it has happened (from our perspective) or it isn't. If it's possible, then we have no actual choices to make. So it doesn't even require any omniscient being. But insisting there is one forces this condition.