While I agree, once again, with the creepiness factor of this being brought up by a man (and always the same man ), I hope you two aren’t actually disagreeing. This is a real problem, one that floored me when I saw how gutsy young girls could be while considering themselves shores mitzvos.
I don’t and would never take that stand against an individual who dresses that way, I do not judge people’s choices and hope for reciprocity on that. But after a handful of influential people jumped in, and it became more “acceptable” than I ever would have imagined, it becomes a problem for all of us trying to raise young girls.