Person A: B raped a girl, so B doesn't tolerate women!
Person B: I did not!
Person C: I don't tolerate person B.
Person B's Friends: I don't tolerate person C since they broke the tolerance contract, B hasn't done anything.
Person C's friends: I don't tolerate B's friends since they broke the tolerance contract by not tolerating A.
Does this sound familiar? It was the start of the Tulsa massacre. If you say that "intolerance of intolerance" is a good thing then I take it that you think that the Tulsa massacre was warranted, since they were just intolerant of intolerant people right?
Edit: Or in the case of for example Damore:
Person A: There are inherent differences between group A and group B, so likely not all differences we see between them are due to discrimination.
Person B: I don't tolerate A's intolerance, he is clearly bigoted and thus broke the contract!
Person C: I don't tolerate B's intolerance, A might be misguided but didn't really show intolerance.
A, B and C now starts a verbal war causing several people to get fired on both sides before it calms down.
Your first situation is not identifiable to me as anything like my described situation. I do not see how you could think the two are examples of the same thing. Your narrative also does not appear coherent to me.
The Damore example is much better. I spent a long time going down that rabbit hole, and my conclusion is that he had a number of things that should have been considered and were not, in themselves, problematic, and he also had a number of things to say that were problematic, and he said many (but not all) of those things in ways that were problematic. The ensuing cultural conversation did the usual unfortunate thing, and devolve into black/white tribalism.
This is why I go first for a conversation with the Person As before deciding on courses of action.
Person A: B raped a girl, so B doesn't tolerate women!
Person B: I did not!
Person C: I don't tolerate person B.
Person B's Friends: I don't tolerate person C since they broke the tolerance contract, B hasn't done anything.
Person C's friends: I don't tolerate B's friends since they broke the tolerance contract by not tolerating A.
Does this sound familiar? It was the start of the Tulsa massacre. If you say that "intolerance of intolerance" is a good thing then I take it that you think that the Tulsa massacre was warranted, since they were just intolerant of intolerant people right?
Edit: Or in the case of for example Damore:
Person A: There are inherent differences between group A and group B, so likely not all differences we see between them are due to discrimination.
Person B: I don't tolerate A's intolerance, he is clearly bigoted and thus broke the contract!
Person C: I don't tolerate B's intolerance, A might be misguided but didn't really show intolerance.
A, B and C now starts a verbal war causing several people to get fired on both sides before it calms down.