That's why I think the GOP leadership should tell every candidate for president (and probably even congress) that if they talk about basically any social issues they will do what they can to end their political career. Of course they can't make such a threat overly public, but the establishment part of the GOP (and the big business donors) that in the end mostly care about economic issues have to do something drastic if they want a chance to be in the White House again.
I especially don't get why Rubio is the one making these statements. His appeal is that he seems close to being electable in a general election, by seeming like a breath of fresh air with his youth and more optimistic, future oriented message. Now he has just become as unelectable as most other republican candidates.