Well, let me count the ways...marriage, which the left has made myriad attempts to discredit by pushing easier divorce rules, have pushed hard to make it politically incorrect to shame those who would give birth outside of marriage which was and should be the proper way to have children, the folks that have advocated so hard and passed legislation for Great Society programs that in effect push the father out of the equation and now you want to make it a laughing stock by going against thousands of years of Western tradition, that goes against the tenets of any of the major religions. The fact that this will unlock other doors, other Pandora boxes in which the demons will destroy, make a mockery, as does SSM, of the idea of marriage. Once you erase the traditional lines, once you go with the silliness of letting anybody that "truly loves" each other be the only real criteria for allowance of marriage, you are going to get brothers marrying sisters, brothers or any combination of such, marrying each other, fathers with daughters, sons with mothers, sons and daughters marrying either parent they want [ as long as they are of age and are "in love" ] or even both...once tradition goes and that line breached, who is to say a three year old, since all sense will be long since be gone, cannot marry? As long as they love each other its okay, right?
An analogy might be when we had social promotions, then you could not really tell who had earned a diploma and so the diploma started becoming a sham...meant little. If anyone can be awarded a diploma, if anybody can be married, then it means little if not nothing.
The unintended consequences of what it is your side proposes, for the selfish sake of such a few, is absolutely astounding. There, now that you have some clues one cannot any longer claim to be ignorant, clueless.
Thought so, nothing more than religiously-based bias against humans who don't think as you