He worked for FREE for gay activists, helping them overturn a perfectly Constitutional law that Justices Scalia, Thomas and Rehnquist voted to uphold.
"He worked for FREE for gay activists"
I see that this is the thing that really bothers you. Maybe you need to study the nature of pro bono work. By definition it is free. Also often involves dealing with unsavory characters. Has nothing whatsoever to do with the individual's opinions. His firm wanted to handle the case and they directed the lead attorney to the man with the most Supreme Court experience.
There's nothing here.