I think it will happen in America within the next 10 years. People will still stereotype to some extent and talk about gay people as a group (like we do about other groups, and I don’t mean it is necessarily negative) but I think people will finally relent and accept there are gay people, they should be treated equally under the law, and the outspoken people against gay marriage and gay people in general will finally move on to hating someone or something else.
One reason it or they are talked about so much now is because it is political, and the parties use differences to wind people up. Right wing against gay marriage, liberals are for it. Something they can play to their base on. Once it is legal for gay people to get married in all or most of the states, the issue will begin to dissapear.
At least that is what I think.