No. I'm saying they arrived at the wrong conclusion because they used the wrong process by which to decide. Their decision was progressive for the sake of progressing. In other words, they legislated from the bench.
Personally I agree that government should not be involved in marriage at all. "Marriage" is a religious construct. If we want government to have some mechanism to administer rights and privileges that are inherent to people living in common, such as rights of surviorship, common property, combined taxes, etcetera, we should make that construct a civil union. And the civil union should have nothing to do with the type of relationship. Civil unions can be married, they can be siblings, platonic friends, whatever relationship is not the business of government. If you want to be married in the eyes of your God then go to your church/synagogue/mosque/temple/alter/beachfront/whatever and abide by your religion's view of marriage.
But that's not the state of things and that desirable state of things is not a realistic goal we can achieve. So, within what is possible, let's not create a precedence for an unlimited progression of who or what can be defined as "married". I think that's what the scotus ruling did wrong.
I still don't follow, you're ok with the state getting out of the marriage business and letting people marry whoever they want but you aren't ok with the state allowing gay marriage as it opens the door to people marry whoever they want? The state shouldn't be involved, but like you said that's unrealistic, so what's wrong as expansive and inclusive a definition of marriage as possibly?