I don't want to get preachy here (especially since Marta and others here probably have done a lot more, in concrete terms, for marginalized groups than I ever will), but this is the thing that puzzles me about Western leftism: at some point morality seems to have become unfashionable, got taken out, and replaced with identity politics; and solidarity with scratching of backs. If the Left, IMHO, was defined by an outlook (moral, ethical), its members could NOT, by the very nature of that outlook, reach a position such as Yoshie states above.
If disabled people ask Marta "What has the Left done for us?", as do immigrants, black people, gay people, and women, what is left of this Left? A bunch of us enlightenment bourgeoisie pontificating on mailing lists? (and according to Carrol, that makes us the enemy of the Left ;-)).
--ravi