Welcome to the Internet.

There's physicists, programmers, simpletons, creators, and a wide variety of other people also on it. There's also Socialists, Neo-Nazis, Fascists, and other forms of unusual and polarizing characters, some of which may just be edgy kids playing a persona to get a reaction out of people, some may hold views as a result of severe untreated mental illness, or some may have had a very dysfunctional life leading them to those beliefs, or many other causes.

Conditioning yourself to react in fury or fear each time you come across these characters is only going to put you in a pattern of escalating mental distress. Trying to close out the mere sight of them through knee-jerk server-wide bans and guilt-by-association server bans is going to lead to more surprises when new leaks keep springing up. Living in reactionary turmoil to shut reality out is a nearly surefire path to any variety of mental illnesses and anxiety disorders. Of course if someone's being an unrelenting nuisance to you, you're free to block them individually if you can't tolerate it further, I'm not saying you can't block/ban people.

Virtue signaling, grandstanding, or talking down to people as if your words hold more weight than others, or as if you have a higher superiority over others, will only shine a beacon for all the debaters and trolls to roll on in. Grandstanding and virtue signaling about blocks or bans is also going to result in a lot of the same.

Just be humble and selfless, and you'll likely have less trouble as a result. Don't take debate or differing views as an 'attack' on your character, otherwise you're only going to escalate drama.

When you're on a public platform, interacting with others publicly, don't be surprised if random people interject out of nowhere, or if someone records you, or says something distressing to you. You're in public. If you don't want interaction from the public, then I'd recommend not conducting those things in the open public. There are other venues like instant messaging platforms, private forums/groups, and so on to hold more personable discussions away from others.