Water cannons make perfect sense. Sprays the tasbards soaking wet, they slip/slide lose footing temporarily, non lethal, environment safe, washes down debris, puts out fires, potential to damage up their cell phones and there’s plenty of it available for cheap. Soaking wet leftist lil punks will run back to home and dry off. Arrest the stubborn rebels who remain.
Because the peaceful black civil rights marchers of MLKs day had high-intensity firehoses turned on them by Dixiecrat police, powerful enough to cause great bodily harm, the symbolism of it would be instantly condemned.
However, todays technology would not look as bad. At a small citys recent 4th of July parade, the fire department sent a large firetruck to the park. A hose was run up to the top of the trucks extremely tall, motorized extension ladder, and the operator let out a nice rainshower over about 80 little kids in bathing suits on a hot day.
Particularly if this rioting increases leading up to the November election, rioters getting wet on a cold day wont be nearly as much fun.
I think we need more rubber bullets fired at the crotches of male rioters.