Truthsharer-
Your statement isn’t really true. there are MO rabbis who don’t have respect for the chareidi rabbis because they disagree in hashkafa matters and feel that they are unnecessarily machmir in halacha. The reason the chareidi rabbis don’t respect the MO is because they feel that they are wrong, not adhering to halacha as they should, and that they are hashkafically krum.
It’s pretty explicit in halacha that elbows are ervah,n not sure what your referring to. And how can you mock das yehudis which is potentially grounds for a women to lose her kesuba! Eating in the sukkah on Shmini Atzeres is a machlokes, covering knees isn’t.
Anonano-
While I’m not willing to completely side with hakatan, as I mentioned before, the MO rabbis 50-75 years ago did bend the rules to draw people in, and that hasn’t been completely undone.