Civil Union is one thing marriage is and should be another..
Marriage gives legal recourse to children.. to its parents..
Civil Union gives legal recourse to corporate partners.
You said, "Civil Union is one thing marriage is and should be another"
Just what is it that you are saying here?...are you saying that those who cannot or will not have children, should just get a Civil Union, as you call it, before a justice of the Peace, or a judge, and that only those who plan to have children should have a religious ceremony for their marriage?
I am unclear what you mean here...if what I posted is a correct interpretation of what you are saying, again, I call it for what it is...nonsense..
If on the other hand, you mean something else entirely, what would that be?