It is simple.

1) Religious institutions should chose who they want to marry.

2) The government should get out the "marriage" business and change it completely to a legal contract structure that ANYONE can enter into. In the case of business we have: sole proprietorships, parnerships and corporations. Allow similar structures for personal relationships. This would be irrespective of ANYTHING other than the willingness for all parties to enter into the contract.

The reasons for a contract are numerous. Many of them are automatically covered by the legal definition of marriage but anyone should be able to get the same things. For instance, my best friend tried to commit suicide and was put in intensive care (she's ok now). To get in to see her, I had to lie and tell the hospital I was her brother. That's just stupid.

If you have a long-term roommate (no sex, etc.) and you have great health insurance, why shouldn't you be able to cover your roommate as well? Why is the degree of intamacy that important?

If you live in a communal home with more than 2 adults (whether there is sex going on or not) and share your finances and possessions, why shouldn't you be able to have a contract that portects everyone in the various situations that might arise?

The structure of marriage laws have to be thrown out soon. They are completely pointless. Why anyone who follows a religion would support legal marriage is beyond me.

For those churches who would choose to keep their marriage only between man and women, how would other churches opening it up to same sex lessen the sanctity of the other? Every religion choses to baptize, consecrate, commune, bless, annoint, bar mitzvah, and/or initiate whom the wish, when they wish and how they wish. Nothing that other churches do lessen the sanctity of another churches activities.