Counterpoint to your anonymity argument: we’ve learned in that past few years that people are very much OK with being publicly identified with hateful ideologies/ideas, e.g. MAGA supporters. A lot of them publicly post and participate online under their real identities, a lot of of it on Facebook.
Anonymity is only a deterrent when you are the odd one out. When the President of the US is the one spouting the insanity you don't have to hide anymore.
