In my opinion, I think that is 100% fine for people to be gay and be able to express it. If someone recognizes themselves as a gay individual, I don't think that anyone should react in a negative or offensive way. Sure, people have every right be against it for religious reasons or any personal reasons, and that is fine, no one is saying that you need to agree with the idea, it would just be appreciated if those individuals against gay marriage would be respectful about their beliefs. It would be the same thing as someone gay insulting someone that was straight because they didn't agree with their beliefs. People shouldn't be afraid to love someone, regardless of gender. If it is true love then who cares, as long as the people in the relationship are happy together, then that's all that should matter.