Ugh. This sort of censorship is *always* bad. No matter what side of an issue you stand on.
It doesn't matter if those accounts being deleted belong to Nazis, White Supremacists, Black Panthers, Hamas, The UN, or anyone else.
Individuals should feel free to ignore or block other accounts... But the communication infrastructure should be available to all.
This is a big reason why we should be promoting and using decentralized and federated messaging systems.