One concern that I share with identitarians: insults based on race, religion, or gender suck. When I get dismissed for being a white man, I can shrug. It just means an identitarian has realized all they have are insults.
But women who get insulted online for being women get to wonder if an online attacker would try to beat or rape them offline. They get to wonder if the commenter is a stalker who could seek them out. They know that insults based on group identity cross the line between insults and threats.
The people who make those insults also know their goal is fear. That's why they're anonymous or pseudonymous.
Inspired by New Statesman - "You should have your tongue ripped out": the reality of sexist abuse online