Dear Avram,
Your talking about open exclusion. I’m talking about those that live in yeshivish areas, send to yeshivish schools, et cetera and aren’t really frum anymore. They are kept in the community if they keep up appearances. But nobody considers them yeshivish.
An example.
Yehudah: Yeshivish people don’t watch TV on shabbos.
Chaim: XYZ had the game on last shabbos.
Yehudah: Nobody considers XYZ yeshivish.
MO doesn’t do this with observance. Which makes more sense to me. Because in every single community, observance is not nearly as uniform as people think it is.