According to C. Nicole Mason, in a June 22, 2011 article in the Progressive, "In order to win in 2012, Obama will need Latinos to turn out in record numbers. In 2008, Obama garnered 67 percent of the Latino vote. In 2012, he will have to capture a larger portion of the vote to account for the potential loss of independent voters and others who have lost hope in the “change” promised in 2008.
Among Latinos, Obama still has a hurdle to jump with voters going into the 2012 election: specifically, his failure to deliver on his 2008 campaign promise of comprehensive immigration reform. In fact, the passage of anti-immigration legislation such as SB 1070 in Arizona has only made the need for action at the federal level more urgent."
Obama has not been able to deliver on his promises to Latino. Must of the blame falls on the Republicans, which have opposed Obama and the Democrats in Congress on every issue. So if you think the Republican will do anything - forget it - just listen to the recent outcry against Rick Perry when he spoke for immigrant student tuition.
Latino if they vote in large numbers in 2012 can use their vote to leverage action on their behalf when Obama wins re-election. Yes we are all frustrated but frustration is no reason to drop support to Obama.