A truly good chicken filet sandwich would always be in favor of marriage equality. Why? Because chickens have displayed homosexual behavior.
And you just KNOW the percentage of homosexuality amongst the factory farm, crammed-into-barns-and-cages chickens (which fast food chains prefer) is way above average.
Oh, also: cows have been observed to be homosexual, too. So there goes the mascots. Your move, Chick-Fil-A.