You do realize of course that it is impossible to offer comment of anykind about any issue without having a point of reference?
The argument espoused by many on the left that no culture is superior to any other is indicative of an intellectual mindset that is adrift. In addition to believing that no culture is superior to any other, this "philosophy" espouses the tenet that there are no "absolutes" in human society or behavior.
Whether they wish to admit it or not, that premise is false and morally bankrupt, for absolutes certainly DO exist, and give the lie to the argument that all cultures are equal: murder, child molestation, sex discrimination, racial discrimination, genocide, and infanticide are all evil....absolutely. All are practiced by the governments of many of the nations of the "developing" world which are held up as being, somehow, co-equal with that of the democratic west.
Sorry, my friend, the comparison of these cultures with our own reveals that there is, actually, no comparison. They are NOT equal.