Gibson has a rarely mentioned take on creationism:

Re Creationism, I must point out an unfortunate subtext that's no longer quite so obvious. Having grown up in the previous iteration of the rural American south, I know that what *really* smarted about Darwin, down there, was the logical implication that blacks and whites are descended from a common ancestor. Butt-ugly, but there it is. That was the first objection to evolutionary theory that I ever heard, and it was a very common one, in fact the most common. That it was counter to Genesis seemed merely convenient, in the face of an anthropoid grand-uncle in the woodpile.
Like the man says: Look at those cavemen go.

Although, there is also a curious split in many creationist's minds when they talk about this. And, I should add, it's not just the rural South; I heard similar things when I was a kid, in suburban Seattle. I have a looney second cousin, a sweet guy to his family, but his brain spent most of it's time orbiting Pluto, I think. He was a John Bircher, took his kids out of public school to found his own militantly conservative Birch-affiliated school, and he had some amazing pamphlets. There were some that compared the anatomy of African-Americans to that of gorillas…and even when I was in grade school I could see that all of the comparisons were bogus. He tried to stammer out some weird explanation that black people were just mildly evolved apes, while we white people were "obviously" completely different, were created by God, and hadn't evolved at all.

He was completely nuts.

I was just a kid.

I kinda wish I could sit down with him now and tear him to pieces. Ah, family.