I definitely think women should be able to go topless in public, if they wish to...and I'm gay, so it ISN'T out of some desire to stare at bare breasts. In fact, I'd have no problem with full nudity being legalized in all public spaces (although some people might get pretty cold at certain times of the year).
For myself, I'd love to be able to have the experience of wearing nothing but a (men's) thong or a "cock sock" in a public venue -- albeit probably ONLY for a special occasion, like a Pride event. Not (for me) in daily life. But I'm self-conscious about my body fat and stretch marks.