I have personally heard (most of) it from a biology prof and from people at community events from people who didn't know me. Plus there are a few hateful trolls on imgflip. It's just another stereotype which can come from any group to any other group. It's especially horrible to me if I hear "Christians" say such things about other groups since it is sooooo not biblical and destructive. Personally I have not heard it from Christians very often in the last decades.