People who oppose you aren't pretending, I have sincere and deeply held objections to this sort of language and the actions they precede.

Anyway where are you even going to put them, where is a place outside of society? If you're thinking of prisons, why do we have this problem in the first place if we already imprison more people than any other country. If this hasn't worked so far what will be different when you do even more of it? Why are other countries able solve this issue in other ways?

A sincere & informed commitment to reducing violence quickly takes you in very different directions from this one. It's other values that have you itching to eliminate people you find undesirable.