One man's unnatural institution (according to you) is another man's desire. You have no proof for this but your own opinion. If you don't want to get married then that's great. However, don't insult the rest of us who do it.
Society cannot survive without marriage. If I'm insulting anyone, it's the DINKs and perhaps the homosexuals.
And, perhaps, it'd be better if I had said "contrary to sinful nature" rather than "unnatural". Most men have to fight temptations, and yet, the fact that nearly every society seemingly independently evolved marriage speaks to the great need for it.
I used to laugh at the Catholics here who said that contraception helped cause the downfall of marriage, but I find myself agreeing with them more and more everday. It's not a path I'd choose to take, but, contraception freed couples from the beliefs that they'd eventually raise kids and they would have to bond together and work hard for them. There's a -huge- difference between DINKs and married w/ children parents, and not for the better.