When someone proudly supports free speech ONLY in the narrowest first amendment sense, I know I am dealing with someone who loves opportunities to suppress voices. :-)
The answer to speech you don’t like is more speech, not less.
It works on the marketplace of ideas, per our US Comstitution, but it does not work on any (each and every) Internet forum that exists, including this one.
The idea here is that every Internet forum controls what is allowed and not allowed. If someone doesn’t like this or that forum ... then they have the legal right and capability to set up a new forum with their own new set of rules and discuss anything that is legally allowed by the US Constitution.
It’s from the many different forums and their differing allowed topics - in which you get what you’re talking about - which the US Constitution supports. You don’t get that WITHIN ANY ONE FORUM.