There's probably a proper term for this but it seems to me there's a lot of absolute-izing language being thrown around, on issues that aren't absolute. Eg, anyone not 100% onboard with immediately taking whatever vaccine is on offer is an anti-vaxxer. Anyone interested in searching out possible off-label uses of ivermectin might as well just cease and desist because we all know ivermectin is just for killing worms in horses.

It's designed to shut down any reasoned discourse or critical thinking and I'm surprised it's still working.