The genius of the first amendment is that yes you can spout whatever vile garbage you want but no one is forced to listen to you. It is also a form of speech to not reproduce someone else's speech.
Still I must ask, alright, nobody is obliged to listen to someone, but what about the rights of those that WANT to listen? 70+ million people voted for Trump after all, is it right to prevent them from hearing Trump? He was also banned from e-mail plataforms too, so basically all his channels to talk with his voters are down, except normal mail, that was crippled a long time ago by the congress (normal mail has an absurd law where all new hires must have their pension pre-funded 50 years in advance... this is what caused all the mailing woes in US lately, wasn't necessarily Trump's fault as many claimed)