refine + redefine

But Didn’t Breeders Already Mutilate the Definition of Marriage?

Marriage is a curious institution that, at one point, didn’t represent any type of freedom or liberty. But over the course of history, heterosexuals have redefined the M-word to create its current form: the willing union of two people in love (or convenience). So how come the biggest defenders of this institution of marriage (read: Mark Sanford, John Ensign) are also its biggest violators?