Of course you would. But technically, every single person could be considered biased on this issue in some way. The simple fact that he is gay does not make him any more biased than if he were Christian or Muslim or black or in an incestuous relationship. In fact, as I pointed out, that every single person receives more rights with same sex marriage bans struck down since every single person then has the ability/right to marry someone of the same sex, even if they may not ever exercise that right. Just as when race restrictions were struck down, that granted every single person the right to marry someone of a different race, even if most never exercise that right.