What the middle paragraph here means, I suppose, is a direct appeal to the public: hey, listen here, folks, stop gathering in violent mobs, don't damage property and don't throw stuff at police officers. It's disgraceful.
Instead, it is phrased in a manner that can be parsed every which way. Like, for instance, he is suggesting to remove the police from the streets so that they don't have to face bricks etc thrown at them by a violent mob.
Why is it that people speak and write with such a degree of indirection?