I've been seeing this take a lot, generally without counter recommendations. If ejecting extremists from polite society is not an option, then what is?

Some have suggested seeing things from their perspective, and engaging with them in some way. However, it is clear that they do not want to argue in good faith, and have become completely separated from logic and reality.

No action at all is a decision in favor of the status quo, with the obvious outcomes. What, then, is the alternative?