only the very privileged (economically, racially, etc.) can afford to consider themselves "citizens of the world"

Yes, this sounds a bit like those people who are all 'we're postmodernist and beyond trivial distinctions of gender now': whereas for the vast mass of people (e.g. all those women earning less than male counterparts/getting lower severance pay/being denied birth control by pharmacists etc) gender is still a pretty significant factor in their lives.