When definitions change organically over long periods of time, due to the masses of people concluding they like the new definition better, that's one thing. It may be disruptive but it's usually a slow process so there's plenty of time to adjust.

But here it's a small minority of exceptionally aggressive people with nothing better to do, trying to change language by forceful tactics. They need to receive strong pushback and possibly exclusion. Words exist purely to communicate, they have no other purpose. Once bored over-educated people are allowed to start redefining the language it's open season and they won't ever stop. See: newspeak, inspired by the Soviet Union. Given your username you should know all about that.

This verbal game-playing has already caused immense damage with the effort to redefine words like racism to mean "discrimination based on skin color that's bad unless it's against white people", an effort that now means accusations of racism no longer carry any weight. Ditto for the attempt to redefine fascism to mean "anything that isn't far left". Words have meanings and people may not simply try to blow their way through to a new meaning by viciously attacking everyone who uses the normal definition until they concede through exhaustion. It's anti-social behavior to do that regardless of whether you like the idea or not. Come up with new words if you care so much.