It is not a special right given, it is a ban against an equal right lifted. There's a difference.
Fair proportions of every population are people who are attracted to the same sex. Recent reports suggest about 92% of people identify as straight in tests, but it's possible that some of those are still closeted individuals. The reason you're seeing openly gay people more frequently is precisely because it's becoming something to which there is attached less and less stigma. Years beforehand, most of those gay people would have lived straight lives out of fear, shame, and cultural pressure.
I don't celebrate homosexuality, per se, because I'm straight, but I do celebrate the lifting of a ban on homosexuality that has caused people to live lies for centuries. I don't think anybody should have to live a lie. Religion was the only ever basis for the ban in the first place, and since not everybody wants to be religious, nobody in a secular country should have to follow laws that have no basis other than religion.