That didn't make much sense. Marriage has changed drastically from culture to culture, and what we value today about marriage certainly wasn't the norm through much of history.<quoted text>
Of course. That is why every culture that ever existed has done so with marriage.
However, imposing a defect on evolutionary mating behavior isn't a constriction, it is stupidity.
What you need to do is explain, rationally, why gay couples marrying TODAY will harm OUR culture in any way.
Why would legal marriage for gay couples be bad for them, provide LESS security for their kids, less support for the elderly gay couples? Then, after you prove that marriage is harmful ONLY to gay couples and their families, you would need to prove that married gay couples are harmful to our society.
Good luck. So far, no one else has been able to do that.