Censure
Censure treats the consequences instead of the cause. Silencing people (or whole platforms) for voicing "wrong" beliefs is missing the problem. Problem is not that those in a "wrong" have voices. Problem is we all, as a society, shaped their beliefs in a way, we ourselves consider "wrong".
You don't blame the apple seed, for producing an apple tree. Everything we hate in society (and in ourselves, for that matter) — is our own doing.