It isn’t really a protest, it’s a “counter-demonstration.” Or more accurately, an attempt to infringe on the first amendment guarantee of the people to peacefully assemble.
Here’s on in Philly
https://www.facebook.com/fox29philadelphia/videos/10156236861588855/#
and Fairfax, VA.
https://www.youtube.com/watch?v=nMN16b2H1cI
They protested a free speech rally in Boston. They are anti-FA (anti-First Amendement)