I am saying that public forums like the Internet is a kind of shared resource. It is the new town square.
Direct threats to violence though will likely not be protected as it would stifle free speech. But, saying that some speech could "maybe" or "potentially" lead to violence down the line is usually not an argument against allowing it.
Besides, it should ideally be a democratically elected civil government who decides these matters, not for profit private companies and its leaders.