As an atheist liberal, I’m personally interested in someone’s homosexuality to the same degree that I’m interested in the details of anyone’s sex life: Zero.
If someone cares to volunteer something, I’ll note it and move on. I really don’t have the time, energy or inclination to engage in either irrational disgust or prurient curiosity. I only care about the sexuality of people with whom I’m actually interested in having sex.
If a friend chooses to share his or her sexual lifestyle as a matter of personal bonding and friendship, that’s another matter. As a friend, though, I would be interested in the discrimination problems, however, rather than the details of their sex life. If I have a friend who’s having relationship problems, it’s important to know gay vs. straight only so I can get all the pronouns correct.
I’m not uncomfortable with people who are very forward about their sexuality. However, given my conventional tastes and my lack of desire to make them public, I tend to have little in common with them, at least on that point.
I have an intellectual interest in many topics, including human sexuality, but I’m more interested in scientific research than one person’s anecdotal experience.
Finally, my reaction to anti-gay bigots is one of disgusted incomprehension. Why should you even care in the first place, much less get so worked up about it? It’s either an irrational, bizarre and useless position, or one of literally evil scapegoating.
I don’t believe that I deserve praise for my “tolerance” or “understanding” any more than I deserve praise for not oppressing left-handed people, redheads or left-handed midgit albino pagans.
If Cecil Adams did not exist, we would be obliged to create Him.