Gender is a "thing"! Notwithstanding physiology, someone's gender, and their identifying roles, are tied to many intangibles, of which sexuality, and spirituality are just a couple of the variables. In family court, the whole due process for denying (Mostly) men the right to equity with their own children in divorce, is based on the "best interests of the children" doctrine. Children do best, and it is the most ideal, when both the mother, and the father are in a healthy, and commited relationship. children recieve their identity "training" from both examples. I don't see how, even remotely, how a SSM would offer the same intrinsic value to society?