Every homosexual citizen has the same, identical rights as any other American. The Constitution says nothing about marriage, and shouldn't. Marriage is not a governmental creation; it is a time honored and biblically ordained institution that is subject not to the government but to the will of the people. And the people, down through the centuries, have spoken. Not just the Bible, but Webster's Dictionary, defines this covenantal relationship called "marriage" as a commitment between one man and one woman.
Because this elemental building block of society has been so defined and respected throughout history, elected representatives in our self-government have granted certain supports and tax relief and privileges to marriages and families. Again, these privileges did not originate with some benevolent higher authority – they originated with the people, through the democratic process.
So if I understand Pat, the government has absolutely no place in regulating the religious institution of marriage, unless it wants to grant special privileges to certain married couples, in which case it's fine for government to regulate marriage. Just so I've got that straight.