And that's your prerogative, but it makes you no different than the people who would refuse service to blacks. And that is not good or bad. Some people would not patronize a place that served blacks. They would refuse to eat in a restaurant where they would be seated in the same section as blacks and in hotels where they might sleep in a bed previously occupied by a black person. Especially in the southern states, refusing service to blacks did not necessarily make you a racist - it was often good business sense and kept your family fed. Which group do you cater to? The poorer and smaller group, or the wealthier and larger group, who is more likely to demand exclusivity? That's basically a no-brainer.

Kicking a guest out of your hotel for being racist is only a smart move if they are being racist at other guests. Requesting that they have no contact with the service staff is entirely reasonable, unless you have no personnel they would find acceptable. Throwing people out for their preferences is absolutely no different than refusing service to a person of a particular religion or sexual orientation, except for where each individual lies in your particular scheme of preference. Some people think certain religions or sexual orientations are far worse than racists. On what grounds do you presume YOUR views to be right?