Don't assume a parable narrates something that actually happened. Recognize that apocalyptic is filled with symbols. Expect a lot of metaphors in poetry. Don't treat a proverb as an exception-less absolute.
There is, unfortunately, too large a number of people who are just outright bigots in America. They're nowhere near a majority. They're a small number. But there are people who are in the Alt-Right who are just straight up bigots.