Well, the point isn't whether an omnipotent god could or could not do things, it's whether we have reasons to think he could.
As a biologist I think the whole idea of a simulation is predicated on a misunderstanding of what consciousness is and how it works. (We don't know the whole story, but we know enough to suspect it ain't just information.)
Mythology is fascinating, so long as we keep in mind that they're stories, not histories.
I find the notion that god is love to be utterly unhelpful and positively misleading. Definitely not the genocidal god of the Old Testament.