flatbush27, you keep on writing that “Yidden should dress differently than goyim”. Who do you suppose manufactures “yeshivish clothing”? Most “yeshivish clothing” is not manufactured exclusively by Jewish companies (b”h for that, or it’d be very expensive, due to unfavorable economies of scale) but by general apparel companies which market this clothing for dress or office wear, primarily to non-Jews. Most “yeshivish clothing”, whether purchased on 13th avenue or at Sym’s, is manufactured by these apparel companies. Thus, yidden who wear “yeshivish clothing” do indeed dress like some goyim.
Of course hats are a major exception to this rule.