I haven't watched Girls as I don't think it is something that would interest me. I am assuming only from what other's have said that the Jewish identity of the characters is explicit. I don't know but surely it could be argued that their experiences in a rich western city is quite different to the experience of a Jewish housewife in north london and certainly quite different from the lives of black Jewish women in Nigeria such as the Igbo. Of course it is ridiculous to think that every conceivable difference can be represented equally.
I can't speak for all Jews but from my experience and reading, Jewish people carry within them a whole history of oppression. The history of having been enslaved, the expulsions, ghettoisation and mass killings might possibly explain why Jews still feel marginalised if not damn right disliked. Claims that the media is controlled from films to newspapers by rich Zionists, to conspiracies about bankrupting states and starting wars and poisoning wells. Just about everything that is wrong in the world seems to be due to some Jewish conspiracy or simply because the state of Israel destabilises the middle east. If the western imperialist notion of people of colour is that they are uneducated and their lands undeveloped then jews are portrayed in an equally unpleasant and false way. From having large ears, big noses, being labelled baby eaters and rapists
?Know, dear Christian, and have no doubts about it, that next to the Devil you have no more bitter, poisonous and determined enemy than a genuine Jew" Hitler. And the catholic church held much the same view throughout its entire history. Show me another race of people who have been so systematically hated, alienated, enslaved and murdered.
If intersectional theory can be used to explain more than just the intersection where gender and skin colour produce a very specific form of oppression then surely it could also be applied to a multitude of other identifiable differences. Surely it could be applied to the very specific forms of disadvantage that "white" Jewish women feel they face because being Jewish can be about race or religion. I'm not in anyway trying to reduce the very real disadvantage that WOC face but I do wonder whether some of them are able to accept that not all white women are experiencing only gender oppression?
However my real problem with accepting Intersectional theory as having to be central in any feminist discourse or activity is
A) what specific form does the oppression manifest in each conceivable combination of identities?
B) Does this theory offer any useful insights into how we end all of these various manifestations of inequality?
I don't think we know the answer to A at a cultural level but I can make a fair estimation of the social/economic impact but I feel fairly certain the answer to B is no.