You’re replying to people who can’t believe the injustice of these laws by explaining that the laws are legal. No consensus will be reached; these are two completely different perspectives. Personally, I think laws, being a made up construct, should generally promote positive behavior like stopping genocide, so I easily side with the protesters and commenters here expressing indignation alongside them.
The legality argument also ignores the police tradition of breaking the law while shutting down protests just because they can get away with it.