If the total % of the population of gay people in a country is only 7% (some say more like 4%) and only about?

5% of them want to get married anyway - doesn't it seem strange to change the whole system just for this miniscule amount of people? I mean they have all their rights now anyway. Try and descriminate against them (or even say anything negative like - 'I don't agree) and they will get you with their lawyers and law suits. This is a seriious question. They can't make a family anyway as they can't produce children?