Communities can set their own rules, but then that's about people rather than what the platform allows. You can get banned on forums and other places. If you were running one I'm sure you'd want to ban people who break your 'weeny' rules.
I don't care enough about Musk to hate him, but I think the guy is an idiot. Whether I continue to use his platform is my choice and I don't have to do what you might. I'm on FB too for similar reasons.
I've not had much grief on Mastodon apart from a few crypto-haters. They are the ones taking an all or nothing stance. There are people there I want to follow. I can't expect them all to join Hive.
Some people are looking into whether Hive could integrate with the Fediverse. That may rock some boats.
Social media is about people as well as technology. We each find what works for us. I don't have time to be active on them all. The engagement I get on Hive has value to me.