Didn't read what he was saying. But free speech does not shield you from the consequences from other people i.e I can certainly censor him in my home. The USA government cannot censor him of course, up to a certain point. The government can censor your free speech if it consists of you yelling fire in a crowded movie theater, or so the theory goes. Trump getting a Yuuuuuuge amount of hate from the people is part of their right to free speech.