To leftist politics, and the "social justice" movement in particular: separate the bullies from the revolutionaries. Shun the bullies; don't let them use your name. Then we'll stop being afraid of the name, and of the revolutionaries.
Thing is, when you feel bullied, why is that? Is it because people are trying to tackle issues that benefit you? Trying to get you to not be certain way simply for the sake/respect of others that are not like you? Is it because theyre being unnecesarily rude? I can comprehend how someone being rude leaves a bad taste, but it seems to me like most of the time bully is anyone who doesnt agree with you.
It's uncharitable to assume that the parent's experience stems from his or her own shortcomings.