This is very dificult topic/issue:
Study finds host of challenges for kids of gay parents | Fox News
But I think the author summed it up perfectly and basically states exactly how i feel.
I have a step brother and sister that are adopted and i feel like if the state becomes involved at any point (foster care) it has to take ownership in the well being of the child. Allowing a gay person or couple to adopt a kid in NYC is different than letting a gay male couple adopt a kid in NC_Skin's town of Greenville, no matter how unfortunate that may be. So i guess im trying to say discretion should be used.
If its a private adoption or international adoption i think the issue is a lot trickier. It becomes a civil rights issue vs a child welfare issue.