As someone whose had a lesbian non-biological parent and a birther go to the court over our custody in Texas, I'm thankful the judge recognized my mom's legitimacy as our parent and gave her full custody. But it could have easily turned out differently simply because of the non-biological parent part, but at least her name was on our birth certificates and we had her last name from birth. Can't imagine it would have turned out the same otherwise despite the other person clearly being totally unfit to raise children.
The politicians acting like this isn't discrimination that acts against the interests of children are lying or ignorant of the downstream consequences.