I think it's perfectly just to refuse service to anyone based on behavior, but not based on race or religion.
Dean KoontzThe geometry of judgment is a circle. Hate is a snake that turns to consume itself from the tail, a circle that diminishes to a point, then to nothing. Pride is such a snake, and envy, and greed. Love, however, is a hoop, a wheel, that rolls on forever. We are rescued by those whom we have rescued. The saved become the saviors of their saviors.
Dean Koontz