You don't need to be married to be productive.<quoted text>
Seriously? Do you have any idea the amount of money that LGBT couples spend in their communities? That money translates to jobs.
Further, your post is insulting to str8 couples who have no children. It implies that the only productive people on the planet are those who have managed to breed (like that takes special skills).
Except if you are talking about children.
And without children, you would not be able to exist to be productive.
Hence the difference.
And, hence the support and protection of government for marriage.