I’ve known a number of Hispanics via the Air Force career and it will shock people that a vast number of Hispanics tend to be Catholic and family-orientated. You might find a first generation family leaning toward the Democrats...but I think it goes the other direction. In the long run...I don’t think this is a four-star strategy.
Imagine ads in Spanish such as: "I vote for Democrats because I believe that a man should be able to marry another man." Or "Homosexual men vote for the Democrat Party because they want to permit men to marry other men."
Perfectly factual advertisements - they would not run afoul of "activists" because they are supporting gay rights - after all, who could oppose that?
/s