Originally Posted by Superbelt

They. Have. Been. Expressly. Forbidden. To. Same. Sex. Couples.

Again, a couple who is infertile, or who chooses to not have children, they don't deserve benefits?
A homosexual couples personal actions are not a choice, they are born gay. It is hardwired in their brains to be gay. That makes them a natural minority. You watch football by choice, wear polo shirts by choice, you are an artificial minority, If I cut your leg off you become handicapped, you have become a natural minority.

What is the secular and religious reasoning for marriage? By secular I guess you mean natural, do you know that there are dozens of animals which practice homosexuality?
Did you know up until the Late Middle Ages (12th century), marriage was a personal affair? No church involved whatsoever, no prayer just the community (as witnesses). Father transfers his daughter and a dowry to ownership by the husband, they ate a meal together then went the husbands merry way.
Not quite the pomp and circumstance we have injected to it since. You can thank a fervently evangelical Catholic church at the time for everything beyond the simple transfer of ownership.