A majority of Christians are in the global South, just as a majority of working people (peasants, wage workers, workers in the informal sector, etc.) are in the global South. And just as there is a North-South economic divide in the world, there is a North-South sex divide in the world, too, between nations and within nations, which is not surprising, for the latter in part stems from the former. (There also are economic, historical, and sexual differences between areas in the South, Africa and Asia being more conservative on homosexuality than Latin America. Cf. The Pew Research Center for the People and the Press, Views of a Changing World, June 2003, <http://pewglobal.org/reports/pdf/185.pdf>, p. 114) If we don't make efforts to bridge the sex divides, we'll end up on the wrong side of the multiple divides.
[WS:] This geographic metaphor does not work very well. This North-South division is merely a rhetorical device, wishful thinking of a handful of Third World nationalists and their developed-country groupies, but has very little empirical grounds. What you call the "global South" is as divided by class and cultural identities as what you call the "global North."
You will find that people of certain socio-economic class status have more in common with people of a similar socio-economic status in geographically distant lands than with their own countrymen of a different socio-economic status. I have more in common with, say, an Indian software engineer or a South African intellectual than with an Alabama redneck, Baltimore "gangsta," or Polish "unemployable." That is even more true about women - I am pretty sure that you will find more in common with the literati women from Scandinavia or Middle East than with peasant women in Japan or rural folk in the US.
Wojtek