Some countries or state have been accepting this kind of marriage. Here in the Philippines, we do not recognize it as legal or something like that. How about in your country?
I;m not quite sure on the status of same sex marriages in my country but I, personally, don't have anything against it and nothing against those couples adopting kids. Why? Well I believe that a child would have a much better childhood and with growing up with a loving parents, who can provide him with the necessities, will help him achieve his goals a lot easier rather than growing up in foster families or similar to that.
Bur what if these cause bullying among students or classmates of that child. Well, I say, society have been very discriminatory when it come to persons in the LGBT community. But nonetheless, they should be given equal rights for adoption too,