Same sex marriage

Please explain to me how same sex couples do not have the same legal rights as everyone else, except legal marriage. My question is: If the majority of people vote for something they feel is right, why is it ok for the court to overturn that law? Do we really live in a democracy? Most people don't think of the unintended consequences of making gay marriage legal.

I just have to wonder what these "unintended consequences" are supposed to be. The frogs will become gay?