NO APPROACH IS GOING TO WORK.
You cannot reason someone out of a position they did not reason themselves into in the first place. If you think you are going to out-logic any of these people into changing their minds you don’t actually understand the way fascist ideology grows & becomes entrenched within a population. Your thought process that you can change their minds by treating them as intelligent members of a well-functioning social order is such okie-doke ass pick-me behavior you should be embarrassed you even attempted to float it. That only serves to further reinforce the legitimacy of their ideas in their own minds. Grow the fuck up.
The goal needs to be a total social and economic embargo. Completely exclude them from our lives in any way possible. We are now in an existential war for the future of liberal society. Let’s hope it stays mostly ideological, but I’m not holding my breath.