The government has a vested interest in legitimate marriage, i.e. the nuclear family: one man, one woman, and children brought forth in the act of matrimony, preferably “holy matrimony”.
“The family is society’s fundamental, irreplaceable unit. It’s the incubator of character — where children are taught manners, economy, loyalty, faith and love.”
http://www.onenewsnow.com/Perspectives/Default.aspx?id=146178
The gov. has an interest in DESTROYING traditional marriage. They want to destroy the family and make everyone dependent on the gov.