CyLegend,
I don't know what you really mean. Gay marriage is legal in many states now. That means you are free to live the way you want with the person (either s/he) so choice is yours. But to continue the life and the generation to go --- I think marriage is a must which will create a strong bond. I think you can stay the way you want and you can separate the way you want on which the connection is not that strong. You can see the example of having girlfriend. If you break you can have second within a week but if you are married you can't have husband or wife within a week because society thinks differently ..... I think marriage is a better way to have a family even you are guy ...