Or it could be that it is the concept of tolerance itself that is faulty here. We shouldn't "tolerate" homosexuality--we should celebrate it. Nor should we "tolerate" racism--we should condemn it. Toleration implies we already don't like the "other," but that we should still treat this other with civility and respect. That's a valuable concept, though fairly limited.

"I know you can't abide your colleague [name deleted]"

"On the contrary, I've been abiding him for years."