The question is: What is unlawful assembly? Blocking traffic? Ticket them for j-walking. Did they damage the cars? Arrest them for vandalism. They did neither. They arrested them for unlawful assembly which appears to me to blatantly unconstitutional.
Would you object if they confiscated guns that they were legally carrying? Why defend one part of the constitution but ignore another? They have a right to assemble and protest as long as it stays peaceful. How do the police define 'unlawful assembly'?


β€œIn a time of deceit telling the truth is a revolutionary act.”
― George Orwell

It's not over when you lose. It's over when you quit.