This is nonsensical. Tolerance is the region between what you like and what you fight. There are lots of obviously bad things you shouldn't tolerate (like murder), and lots of mildly distasteful things you should.

Someone else being less tolerant of something than we think they should be isn't some special category of evil. As with anything else, you have to decide whether a particular case is bad enough that you must fight it, or ambiguous enough that it isn't worth the conflict.

The intolerant left seems to have Berkeley buttoned up.