While I find their methodology more than a little dubious I have little doubt about the point its making.  If for no other reason than the lesser amount of time they have to pull a trigger will keep the body counts lower.  I've always thought that run/hide/fight stuff they teach now had it completely backwards.

Did you watch the video of the Christchurch mosque shootings?  Several of them tried to stop him but it just wasn't enough.

I'd heard of the Pink Pistols but hadn't really read much about them until now.  There was apparently a chapter here at one point but it doesn't appear to be active now.  More self defense is never a bad thing!  As for those communities, I don't think assigning either to one wing or the other is or ever was accurate.  Still, I know what you mean, and more interaction and understanding between armed people is never a bad thing.  On a similar note, Redneck Revolt tried to do some outreach to the 3%ers a while back but I don't think they ever got through the cognitive dissonance.