Yes, you can go to another instance that doesn't ban discussion of racism at the drop of the hat, but it does not change that you lose everything you built in the previous one and there is no greater oversight on instances to protect marginalized people other than the honor system. And we all know how well that works.

So, unfortunately, mastodon is a pass for me. I don't want to use yet another service that claims inclusivity while oppressing people with harsh truth to tell.