He has the option to be seen by liberal historians as the man who wrote the majority opinion striking down gay marriage laws.
He can uphold Pro Family anti gay marriage laws until the next case comes before the SCOTUS when Obama will have two or three appointments to the Court.
The most scary aspect is that by January 20, 2017 the SCOTUS could have five of its nine justices appointed by Barack Obama.
Anti-gay? I think you have been drinking the koolaid. There are no 'gay' beings being discriminated against. There are disordered self destructive individuals who choose to engage in intrinsically disordered sexual activity that not only is of no benefit to society but in fact poses a threat to society.
Just discrimination is in order on this and any other socially self destructive behavior. Giving these self destructive idiots benefits and privilege for destroying themselves and society is an absurd proposition that could only seem rational in a leftist mind -a mind devoid of rational thought.