That is where the problems have risen, by allowing politics in discussions. There's a very good reason politics and religion were historically banned in forums

That is where the problems have risen, by allowing politics in discussions. There's a very good reason politics and religion were historically banned in forums and groups. It appears we need to learn the lesson again. Also, moderators are people and they're not perfect. Unfortunately allowing political discussion in also brings out political bias in the mods and it gets out of hand. Twitter on the other hand pretends we don't need moderation, but then arbitrarily bans people because something. There's no clear guidelines, no consistent behaviour and mod-by-ML is useless in the end. It's a perfect example of 'free speech' implemented by someone who has no real idea what that means.