I understand the concerns of the woman who said that the study was slanted because I have done a lot of survey work for a living, and the results were determined by the agendas of the people who wrote those surveys I was paid to read as worded. However, I don't think that being raised by lesbians is bad for children. I was talking about this very thing with a friend of mine who would like to have children with another woman and who was concerned about both the affect and the effect that this would have upon her children. We have both noticed that many a girlfriend has stepped up and taken responsibility for her female partner's children long after Daddy had abandoned them, usually before the women even met each other.
The children of sperm donars and lesbians would have a huge advantage in that their mothers do not resent their children's fathers, whether that resentment would have been vocalized or veiled. I don't even think most mother-in-law bashing is nothing more than sexism since women who could not control their fertility in marriages which they needed for their economic survival would certainly swell the ranks of bitter old women.