Incest? That’s about the only evil that isn’t involved. The egg didn’t come from the mother/grandmother. Genetically, the child is not the child of the mother and her son.
If the baby is the brother of the gay son, why does he need to “adopt” it? Since when do brothers need state permission to live together?
Unmentioned are all the babies who are ALWAYS murdered in the process of in vitro fertilization.
I was adding incest to all of the evils everyone else had mentioned.
Babies need a legal guardian of some type until they are emancipated, to sign school papers and so forth. If his mother assumed that responsibility, he wouldn't "feel" like a "parent."