All of these people look like scumbags, its easy to tell they are there to cause trouble, question is why they are allowed to mix with normal human beings in the first place.
They should have been given their own special area, so they can be tasered or bear sprayed easily without hurting real Americans.
Cattle prods are okay but *nothing* beats the psychological/physical deterrent of big, nasty police dogs.
If they want to “relive the 60s”, give them the complete, truly “authentic” experience.