I agree that civil unions are not adequate solutions. Aside from your above arguments a civil union may not confer the same legal protections and rights to a couple that marriage does.
We have been hearing a lot about the sanctuary of marriage but, marriage is simply a contractual agreement between two people.
Our constitution requires equal rights for all and I do not see how a civil union is equal.
On a personal note when this whole debate started up I asked myself how would I be harmed if two people of the same sex decided to marry. The answer was it doesn’t. Furthermore, it is none of my business what consenting adults choose to do. I think Bush is making a big mistake by making this an issue. I think there will be a minority of people for it and against it but, as a hole most people just will not care enough about it either way. Certainly not enough to amend the constitution.