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Is there more to know?

I guess it doesn't matter too much to me, because I won't engage them. Maybe it would be interesting to someone who wants to deal with that.

It matters only that Antifa is a pan-Leftist organization. Whether it's Antifa or Son of Antifa (or, should I say, gender non-conforming offspring of Antifa), during a conflict it will encompass a great many more than those involved today.