Just to give a little perspective, yes, there have been times in Jewish history when leadership made the painful choice of amputating a limb to save the body. Heck, every time you daven shemona esrei and say l'malshinim is an example.
What I think some of us are forgetting is that those ostracized parties were actual
movements with deep
ideology, not a bunch of kids floundering at life.
So too when someone referenced that the point of protests in E"Y against chilul shabbos was to keep it from becoming the norm rather than to actually change the behavior of the shabbos violators... nu, perfect example. That was about
institutionalized chilul shabbos by
adults with
power -- people who run the bus schedules and who own stores and malls.
My point is that you don't shoot a bazooka at a housefly.
Oh, doodle, and as far as your hypothetical question about these kids raping people, go find out how many of them were raped or molested (by frum people.) And doodle, yes I really love you too EVEN THOUGH you are frum.