That's a good point. Maybe we do it by ignoring one lunatic at a time.
Rough times have a way of bringing people back to reality. Maybe the current difficulties of the 'Crats ("rough times" is a mild term for what they are dealing with these days, heh) will return at least some large number of them to sanity.
Overall, only about 30% of the population self-identify as "very liberal" (aka "completely insane") so there is some hope in that the majority will once again wrest control of the direction of our culture/society away from the cacogens.
NOTE; "cacogen" - (1) product of inferior breeding, (2) anti-social person. Derived from Latin; "caco" 'dirt, filth, lowly" and "gen" type.
@LateForLunch IMO, I think we should have started calling this stuff out for absolute lunacy a long time ago, before political correctness took hold and grew such deep roots. Those who recognized its absurdity were too well-mannered and didn't want to hurt feelings, and look what happened.
Sometimes I think people are so fed up that the tipping point has been reached. But then you have a generation of college kids who have been raised to think this is normal, and who would probably need deprogramming to see the light.