If you still have any doubts, just ask them.
Not the smarmy double-talking sophists they deploy to cover their tracks and change the subject, wrapping themselves in the flag and peddling serene logic and phony statistics. Go to the ones on the street, in the bars and barbershops, standing in line at the market or in the cube next to you at work. You'll find out why they hate, and how much they hate. In fact, they can't wait to tell you.
But you'll also learn there's not as many as there used to be. And this scares the shit out of those who remain.