Civil unions and marriage are not same at all.
You want marriage between one man and one woman but I disagree... I want marriage equality for everyone, even one man and one man, one woman and one woman, one man and one woman.
When DOMA is gone so federal recognize any marriage that legal in state and other states should respect marriage, regardless on same sex or opposite sex.
For last question, you are silly. Only way to get marriage license from court so anyone can have marriage ceremonies in anywhere, even in court. Some gay people got married at GLBT friendly churches. I won't care if any church deny marriage ceremonies to GLBT people, just like many GLBT people do, we will have marriage ceremonies in other way, especially GLBT friendly church, Disneyland, Disney World, etc.
Civil unions aren't true marriage and that's very unacceptable for me.
For marriage ceremony, I rather go to Disneyland and it is none of your business if I want marry with my partner.