I read an interesting article in the Washington Post about Catholic Latinos. 57% of Catholic Latinos in California support gay marriage, as compared to only 22% of Protestant Latinos. Both groups are grounded in strong family values, but that means different things to the different groups which may be why they view gay rights differently.
For most Catholic Latinos, family values means family loyalty. They spend a lot of time with their family, and their religious worship is based on family milestone events, holidays, and cultural festivals. For them, family is family, so if a child comes out of the closet, he or she is still family and should still be loved, included, and defended. Because of this, Catholics Latinos "say they trust the parents of gay and lesbian children more than their own clergy as a source of information about homosexuality." (Public Religion Research Poll) They support gay people because they support their sons and daughters, cousins, nieces and nephews, brothers and sisters, etc who are gay.
Protestants, on the other hand, believe in family values as they connect to their more individual based worship. Family values means teaching children to seek out individual salvation, usually through a personal conversion experience that leads one to confess Jesus as personal Lord and Savior. In practice this makes them like many Latter-day Saints who are more prone to believe what their religious leaders say about homosexuality than their own gay family members.
I see both attributes--family loyalty and individual family morality--in Latter-day Saint culture, but unfortunately I see too much of the second and not enough of the first. I wish Latter-day Saint families would more often react with loyalty to their children who come of the closet instead of loyalty to the general pronouncements of church authorities. I am blessed to have family that fall somewhere in the middle. My parents do trust what their leaders in Salt Lake tell them, but they are also loyal to their children and showed support by coming to my wedding even though they didn't believe I should marry a man. My heart goes out to those young gay Mormons who are not so lucky.