Back in 2002, I spent a month and a half in Portland. While I was there George Bush made a visit. And of course there was a "demonstration" in downtown Portland. The people I was staying with, good conservatives, said that most of the people who show up and do damage to the storefronts are not from Portland.
So, these antifa people are just the same people with a more fierce cause, plus we now know that they are getting paid to show up.