I really don't think "sexual orientation" is really about "sex" per se, although to most people that is all they see with regards to homosexuals.

I couldn't care less who, or what sex, someone is with regards to making a person I care about happy. In fact when I observe any couple holding hands, engaging in a obviously enjoyable conversation with one another or just sitting quietly enjoying eachother's company, I am happy for them!!, regardless of the couples sexual combination.

That should be, in my opinion, the only thing people should care about. Who makes the people I love and care for happy? and everyone else...to each there own!