this technique works so well you can't even imagine. wreckers are used to getting their way and their egos can't withstand any type correction - even if they haven't broken any rules yet, the meltdown that follows a polite request like this will see them out. even just ignoring their acting out can cause them to self-remove.
and it's fail-safe because actually well-meaning people won't be affected. be warned: they will attempt to beat you over the head with social justice language jargon. don't fall for it, and call it what it is - the language of care used as a weapon. it contains zero care.
if their behavior is indistinguishable from COINTELPRO, you have an obligation to the group/space/whatever to treat them as a hostile agent
not everyone who says they want to build the house can be trusted with a hammer
One of the easiest ways to push out wreckers is just to tell them "sorry, around here we express our disagreements with respect. If you can't practice respect, then you need to take your disagreement elsewhere." They self-destruct or leave nearly 100% of the time.