If you're a parent you bring your kids up well and one of them happens to be gay, because they happen to be attracted to the same sex, that makes them unsuitable to bring up kids, doesn't sound right to me. Your sexuality has fuck all to do with your ability to raise kids.
well I don't think most of the anti-arguments are made on sexuality, I think only the most ignorant are thinking that its a gay conspiracy and that they would raise their kid to be gay.
Their arguments are on the basis of gender. And gender does affect the way you parent, generally. However, as has been pointed out, so fucking what. Having two parents of the same gender totally pwns not having any.
Also, I am not sure how 'natural' it is to be raised by one mother and one father anyway.
Possible slogan for gay adoption:
It takes a village to raise a child . . . so why not let the village people?