Youtube for one has banned a lot of discussions around guns, and gun channels. There is a very limited number of things they allow and gun channels are walking on egg shells. The Rittenhouse trial cause alot of banns, strikes, and etc as well. Including one of the most popular law channel's getting taken down for a time.
That is one example, I can instead highlight any number of other topics like abortion, pronouns, gender, sexuality, any of the other "culture war" topics.
I subscribe to multiple high-sub-count YouTube channels that post videos about guns on a regular basis. Are you referring to their rules about violent/explicit content? That is absolutely not a subject matter ban like 'you can't discuss guns' and the facts don't support a claim that they ban guns.
YouTube's rules enforcement for videos is notoriously bad and has been forever, but that doesn't change their actual policies.
Enforcement is more pertinent than policy. If their policy allows for such videos, but in practice removes them, it doesn't really matter what their policy is.
That is one example, I can instead highlight any number of other topics like abortion, pronouns, gender, sexuality, any of the other "culture war" topics.