I think the "until" is "until all readers of this site share a single sociological view on controversial issues and/or lose all interest in having their view heard." Asking your moderation tools to solve societal problems or prevent a discussion forum from reflecting a raging societal debate is trying to hide from the problem.
> it only takes 2-3 misogynist trolls to create a 300-comment shitshow
I get what you mean, but would argue that, "it only takes 2-3 trolls plus 300 people who respond to them to create a 300-comment shitshow". An ignored troll is a powerless troll. They get their power to disrupt from the responses, not their words.