“…spitting on little girls whose clothes are the “wrong color”, and throwing rocks at cars on Shabbos. They think they’re being frum when…”
I agree wholeheartedly. That to me is disgraceful behaviour.
“…and just like wearing tfillin all day is not the derech.”
Now, there is a world of difference between personal practices and practices that imposes on others.
If someone wants to wear Tefillin all day, a Bracha on him. That used to be our practice. Are you going to suggest the Gr”a was off the Derech? Believe me, most people in his day only wore Tefillin in the morning/Shachris. Is carrying around a Gemara all day off the Derech?