It is possible to be a while supremacist and not actively hate all black people. That doesn't mean they aren't a supremacist. You can be Christian and not hate gay people, Christianity by design is anti same sex. It's right in the book.
Speaking as someone who's agnostic, if you immediately have a problem with someone for their faith before knowing for damn sure they are twisting it's teachings to fit their bigotry, you're weird.
How you gonna turn on Samoa Joe simply because he's religious?