Abortion, gay rights, who cares. Narcissistic questions dressed up as moral issue. Redundant: does not matter what anyone thinks; things are already playing. If you are not a highly influential politician, you are practicing pure indulgence. Evil. And twisted.
I don't care about either, and I accept both the way I accept air. If I was a nation's leader, I'd deem them ideological invasion and act the way a nation is to treat invaders.
Adoption, however, I never thought about it. Not flashy news, not enough nudes. Whereas abortion and queerness can be mitigated implementing enforced trajectories, orphans can happen the same, crimeless. A sudden death of both parents, and what do you do with the child? On the other hand, two parents who can't conceive may want a child to help grow. Sounds like a nice ending. In practice, I suppose the rate of orphans who aren't picked is just that high. Which means adoption is discriminatory. I'll go with my gut and say it should not happen. Adoption should not happen. If a child is truly alone and there remains no other family to take care of them (uncle, grandfather, et all), they should be put in the state's orphanage institution.
An adult or a couple of adults wanting to get completely hold of an unrelated child because they can't survive without him/her is disturbing and has no place, a priori, in a nice society. I think orphanages accept donations. It's not all about you.