If you believe in the principle of free speech you might be better positioned by saying that everyone is welcome to come to the town square, but if you make poor speech then you will be refuted.
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.