Shot:
they are a legitimate threat to freedom and to anti-authoritarian leftists,
Chaser:
we shouldn't allow these people to exist in the internet free
https://old.reddit.com/r/tankiejerk/comments/197l9ik/tankie_is_not_offensive_anymore/
Right but does it have a name? If it doesn't have a name, it hasn't been formalised. Naming it gives you something to attack, it gives you a way to communicate that it's bad.
The goal here, in essence, is to use the practice against itself. I want to thought-terminating cliche the tactic of thought-terminating cliches. Give it a name so people can debatebro it as a bad thing that you absolutely should not do every time they see it.