For such a “hot-button” issue, Obama’s support for gay marriage did not change how a majority of people feel about him.
Republicans, who didn’t like him in the first place, say they like him less. For Independents and Democrats, their view stayed the same. Here are the numbers from a poll conducted by the Pew Research Center for People and the Press:
“About half of Republicans (53%) say they feel less favorably toward Obama because of his support for gay marriage. By contrast, 60% of independents and 52% of Democrats say their view of Obama has not changed. Among independents, as many say they feel less favorably as more favorably toward Obama as a result of his gay marriage decision (19% each). Far more Democrats say they feel more favorably than less favorably toward Obama (32% vs. 13%).”