I recall having this discussion a few times on wotmanias CMB, and stand by my position there: Tolerance includes tolerating intolerance, and if that makes you question some of your bedrock assumptions, maybe it should. It's like free speech; you never hear people demanding "tolerance for ice cream!" or "free the people who don't play loud music after 10PM!" because they're not exactly under assault. Tolerance is Voltaire saying he may not agree with what you say but will defend to the death your right to say it. So we have to tolerate bigots, too, or we're just practicing selective bigotry of our own; if the particular part of the populace we choose to hate and/or disenfranchise is an extremely small and unpopular one, that just means we're very SKILLED bigots. You can disagree with them, argue with them, oppose them publicly, "withstand [them] to [their] face" as Paul did when Peter was shunning Gentile Christians, but what you can't do, if you claim tolerance, is muzzle them. The one exception is when they're committing or encouraging violence; obviously your right to be loud and ignorant still ends where the cross ignites on my lawn.