The society is trying to keep the gay "virus" from it's destructive ends. For somebody who doesn't bash gays, you seem to have a colorful choice of terms...
There are a whole lot of things society might like to do that are destructive of personal freedom and the notion that all men are created equal. Racial segregation was wildly popular in the South in 1950, but that didn't make it right.
The mechanism of having the state in the middle saying that certain people can be married and certain others can't is just corrosive. It does nothing for the sanctity of marriage and gives the people who want an expansive definition of marriage a mechanism to achieve their ends.
If you know you are destined to lose on a certain playing field, why play there? Why not get government out of the marriage business?
I wasn't arguing about the rightness of the government involving itself in marraige, I would agree that it needs to be completely out of the marriage business.
You're missing my point, which is a simple point of fact. Homosexuality is bad for the species and society, always has been. We know this inherently and it's been proven over and over throughout history.
While PC and modern thought (which tells us we're smarter than our ancestors and history) takes pause at "gay bashing", I'm simply pointing out that it's a collective self defense mechanism against an unnatural and destructive element. Like white blood cells try to eliminate a virus for lack of a better term.
The more bashing the better. That sounds cold to you because you're immersed in PC-think more that you realize.
Did you know that in many cultures there is no such thing as gay?