Obama already has 80% of the Jewish vote and 55% of the soccer mom vote kabar. He’s not doing it for that reason ... more likely he is doing it to appease the far left wingnut crowd that want more emphasis on gay rights addressed during his first term. THEY are the ones feeling most neglected right now, and THEY were a major player in his fund raising efforts this last time around. He also needs their support badly in the midterms.
Yes, when push comes to shove, the Jewish vote will go overwhelmingly to the Dems. But the issue in November is not percentages but turnout.