If you can't get the people you want, but you really want to get somebody...
I've got a family.
In this economy? Hell yes.
Being cancelled can mean that you will never get another job in your field. It depends on the circumstances. A cancelled professor on tenure track will probably never get another tenure track position.
So, to rephrase your words, "What so bad about not being able to feed yourself and your family...is that really so bad?"
Do you really think that the effect of "losing talent" will be accounted for when cancelling people? MAO "cancelled" (murdered) the intellectual class in his cultural revolution. Rational though isn't going to be emphasized in the midst of an irrational political movement.
By the way you write and think, you're probably a Millennial with a very weak grasp of history. Yet, you feel qualified to tell people that LIVED through communism that they should't fear what they are seeing.
They can't touch Trump, or Ben Shapiro, or any of the other people that they really hate. Those people's actual jobs are to say things progressives hate.
Who can the cancelers get? Moderate liberals, working in liberal enclaves, who said the wrong thing. Get'em! That'll make me feel better.