Also plain ol' dumb fucks.

My parents weren't religious ("we believe in a higher power but dont know what") and then went to a non fundamentalists and not extreme church, and lived in California, but within months they were punishing me for believing in evolution because it was against the Bible they said, while also claiming it was interpretive and not literal.

They literally just knew evolution was something Christians stereotypically hate so decided they were against it too since they're Christian now.