Most of them live in Seattle area.
Seattle-Portland was where Antifa began back in 2006 (if not earlier).
I haven’t been able to track it farther back than 2006 but its very possible they are a spin of E.L.F.
Good point, we have not heard much from ELF in years. I doubt that you went away, most likely reincarnated as something could be antifa could be some other group. Some of the ELF and anti-fire tactics seems similar but at this point it is anybody’s guess.