Every election, Democrats delude themselves into thinking Arizona is "in play" because of the "huge influx of Hispanics" and Republicans delude themselves into thinking that the Jewish vote is "in play" because of the Democrats anti-Israel policies. Both sides are wasting their time trying to win over those constituencies but keep trying it election cycle after election when they get buried by the other side.
Obama could call for Isreal to be wiped off the map and he'd still win a majority of the "Jewish vote" (probably closer to 60%). A lot of Jews are secular or nonpracticing, as well as ultra liberal on domestic issues, and would vote for Adolf Hitler if he promised them a bunch of socialist goodies.
Likewise, Obama can do all the "outreach" he wants to drum out the "Hispanic vote", a lot of the "Hispanic community" isn't even 18 yet so they'd have to vote illegally just to support him (not that I wouldn't put it past Obama to try that). He can get 100% of them to vote for him in AZ, it won't make a difference because the non-hispanic whites in AZ are overwhelmingly against Obama and they make up the majority of voters. It's like trying to beat Bobby Rush in y congressional district by getting the white suburbs to vote agianst him. He could lose the white areas overwhelmingly and still carry the district handily.
“He can get 100% of them to vote for him in AZ, it won’t make a difference because the non-hispanic whites in AZ are overwhelmingly against Obama and they make up the majority of voters.”
But Obama won’t come close to 100% of the Hispanic vote in AZ—he’ll likely top out at 70%—and Romney should carry the state handily.
As for the Jewish vote, I don’t think that it is as unachievable for the GOP as you assume. Remember, the GOP doesn’t need to win a majority of the Jewish vote to beat the Democrats; if the GOP got, say, 40% of the Jewish vote, FL would become a safe GOP state, OH, NV, MI, WI, PA and NJ would lean GOP, and CT, IL and maybe even CA and NY would be in play.
And, yes, 40% of the Jewish vote is doable—ask Bob Turner. While Orthodox Jewish voters are a smaller percentage of the Jewish vote outside of NY, getting to 40% won’t take that big of a jump.