We should expect youtube to value free speech regardless of whether or not they're legally obligated.
I’m ok with bars throwing out rude patrons, and I’m ok with YouTube banning nutjobs. Nutjobs can pay for their own video hosting.
Until the hosting providers throw them out too, like AWS does.
Youtube is basically a monopoly and without trying to debate the ethics or correctness of how they got there, the message should be that they can choose to uphold certain principles like free speech or they can choose to be broken up.