Ultimately, the fascist mindset is powered by fear. (This is why it has to constantly mentate on being the best, why it has to reinforce itself constantly against all outside forces, because they are all dangerous, evil oppressors, out to stop them--- so, they themselves must stop their oppressors FIRST.)
Oppression only heightens fear.
It is most effectively curtailed by removing the basis of that fear-- That means actually exploring the root cause of their condition, and removing the source of that fear. Unreasonable fears about foreign people need to be dealt with through gentle coaching and inclusion therapy, so that the fear of the "others" subsides--- etc.
In the cases where there are real forms of harm being done (such as the relentless crusade some people in the left have against gun ownership, which is in and of itself not a vice or an evil that must be stamped out-- the vice is the desire to use the weapon to compel another human to comply-- which exists for a wide assortment of reasons, and is where effort should really be focused-- especially when people do in fact own guns for perfectly legitimate reasons that do not in any capacity involve compelling other humans to comply, that are essential to their daily living), acknowledging that harm instead of being a denialist wank, is essential-- as without that acknowledgement, there is no reform away from the harm.
The issue with the current situation, is that both sides "KNOW What's WRONG!". They both have agreed that "It's the other people!!". There is no dialog. There is no common ground. There is no discourse, there is no DESIRE for discourse.
As long as that remains true, there will be no healing. Only further division, fear, and hate.
Are you going to be a part of a workable solution, or are you going to contribute to the problem?