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I'm not familiar with the reasons behind those particular subs being banned, but in my experience "toxic communities" are a more common reason for a ban than the subject matter. If a sub wants to discuss gender identity and politics that's one thing. If that same sub then becomes a rallying place for those who brigade and harass other users or subs and the mods don't respond to admin requests to stop it then the sub gets banned. It's not true of all cases, of course, but it is common and something that most users of those subs will probably never be made aware of as the content is controlled by the mods who may or may not support the behavior that got the sub banned.