The western world and the muslim world are both massively varied, of course, so I guess we are just speaking generally. Do you want to concentrate on particular countries? To answer your q (and I would appreciate if you would answer mine), as I understand it, you are saying the west encourage women to dress in a certain way and that this is sexist/objectification. Many muslim countries do the same, except with a different dress code. In fact, some muslim countries have it down as legislation that women must dress in a particularly way. On the whole however, women are freerer to dress more conservatively in western society than they are to dress less conservatively in muslim societies. This too is sexist/objectification.