I can't think of a clearcut example that would show barring someone from your private platform is an expression of your First Amendment protected rights. I'd as

I can't think of a clearcut example that would show barring someone from your private platform is an expression of your First Amendment protected rights. I'd assume it would qualify under whatever property right gives a business the right to refuse customers, but I'm unsure if that's a constitutionally protected right and what it is based on. There might be enough uncertainty to at least not get the law immediately overturned, but I'm no expert.