I think if you read what he says on Twitter it demonstrates that he's gone so far beyond norms that it's not unreasonable to expect that people are going to target his family (non-violently).
I love how all these attacks are presented as if no one is actually doing them -- like it's God himself visiting vengeance on him. Some impersonal force, in other words.
Try being grown-up enough (or maybe "big enough") to stick with the people who've actually offended you.
That Ackerman was the one who started with “oppose us and we’ll destroy you” by trying to doxx pro Palestinian protestors and going on a crusade to discredit universities.