According to court precedent, a baker has to bake a cake for a gay wedding. But they cannot require him to ice it with "God is dead". If a white supremacist couple comes into a Jewish bakery they must be served, but they can't require swastika icing.
Youtube is a private company, not some sort of public square or civic space that must accommodate free expression in all forms. They offer an equal platform to everyone no matter what their political persuasion. (Being a private entity, they're not required to, but they do.) But if you upload nothing but crap, and they decide it's crap, they have the right to kick you out. Unless the cops show up to arrest you because someone didn't like the politics in your videos, no U.S. court will consider your First Amendment rights to have been infringed. They'll just say you can upload your videos somewhere else if you don't like it.