Earlier quoted context omitted.
Is this not a problem on HN? I think it is but if it's not, what makes it work here?
While HN tried and abandoned the "no politics" rule, it does have a soft "no partisan flamewars" rule and a vague "stay on topic" rule. It bans violators pretty effectively - if you're just starting trouble you won't last long. Also, on HN, you can't reply to people , only to a comment. And it doesn't end up in any inbox. This makes it a lot harder to maintain a longstanding "beef"; we have to do that manually.
HN is like any other forum which censors certain views for being controversial.
Like stating that BLM is a Marxist organization — with a citation to their founders describing it as such.
HN relies on your belief that they only ban people “starting trouble” to remove certain topics from conversation, like how Marxist activists are using historic wrongs as a way to undermine society and for their own selfish enrichment.