I actually think his position is right on. I really don't think this is an issue the federal government should be involved in unless it is forced on it.
If the SC found DOMA unconstitutional, I'd favor amending the Constitution to let the states decide, and make it so other states wouldn't have to recognize marriages it doesn't agree with. If the only proposal on the table was to ban it outright for all 50 states, I'd vote for it, but grugingly. It really seems to me that, in a perfect world, the Government wouldn't be involved with marriage at all. I recognize that this isn't practical because of all the legal ramifications, but it is what I'd perfer.
You did not read the Constitutuion... pay special attention to the words in red...
Article. IV.Section. 1. Full Faith and Credit shall be given in each State to the public Acts, Records, and judicial Proceedings of every other State. And the Congress may by general Laws prescribe the Manner in which such Acts, Records and Proceedings shall be proved, and the Effect thereof.
Congress is perfectly justified to act...
Here is a perfectly logical wording for a U.S. Amendment...
“Neither the United States, nor shall the States recognize any legal status for the cohabitation of homosexuals.”