They're vampires who believe any effort you make to keep their fangs out of your neck represents an imposition on them.
That's what makes them infuriating.
Tell them you have the moral right to not serve, hire or trade with anybody, be they Red, green, Black, brown or purple, with a limp, no limp, Christian, Jewish, muslim, tall, short, blue eyed or brown, or just because you don't like what they're wearing that day and you're the bigot for just asserting the right.
So?
eta: Oh yeah, forgot teh "gay".