There are a lot of people that care, in both directions. One day in humanity's future, sexual orientation will be a non-issue. However, this day and age, there is still a fight to be fought.

I don't care that he's gay, and it's nice that people can be who they are and not be persecuted for it. However, other countries do far worse than vent their frustrations about the morality and social pioneering of it all on messageboards. You're not wrong for asking who really cares in the least bit. It's actually kind of nice that you don't care. Not from an apathetic standpoint, but that it's so little of a deal to you that you remain wholly unaffected.

As weird as this may sound, I wish more people were like you.