Feel free to disagree but I am strongly leaning towards the theory that the people who do this have serious mental imbalances and they shroud it with krum fake “frumkeit.” I think these people would be nasty if they were chiloni or Christian or anything else. They are just extreme people who probably should have seen a psychologist years ago but didn’t because its so taboo in “chareidi” families.
I think all of these types who get violent or spit should be arrested, subjected to a professional psychiatric evaluation and if found requiring therapy, given the necessary therapy until they are once again fit to live amongst society.