Do you mean prop 8 in California? What is the content of prop 8? (If I am correct, I know - and maybe most in the US will also know, but there are some who could probably use a little more explanation)
Personally, I am very grossed out when I go anywhere near thinking of myself in a gay relationship. The thought of a lesbian relationship is not that serious.
With regards to marriage rights, I personally think that marriage needs to be reserved to that between one man and one wife. I don't see how not allowing same sex marriages reduces anyone's rights.