i don't know why we aren't using the good old firehose treatment. seems like a twofer to me. stop these scumbags and give them a much needed shower.
I'm pretty sure a good ol' fashioned baton cracking into some elbows would handle the Minneapolis mobs just fine:
Years ago, I was trained on the 36" riot baton, and crowd control. Always preferred the kneecap, myself.
Having had a broken kneecap, I can assure you that hostilities will end quickly.