Sorry, I don't wish to denigrate the sincere feelings behind some of the sentiments expressed here, but talking about things, never actually gets anything done.
Joining organisations is all very noble, but changes nothing. While all it does on this forum is attract undesirables to cause trouble.
I detect a fair degree of smugness in some of the posts, and I am quite sure that all of those who joined up would not turn out and actually do anything concrete.
So that's why I think a lot of it is hot air.
I also repeat my comment on another thread.
It seems like an odd place to campaign against a British organisation on a self selecting; US based web site, like this.
While the label Folk against Fascism is all very neat, this is not the place for the battle to be fought IMHO, it may even cause problems for this site.