As one of thousands of binational couples who are forced to leave the US because of DOMA, I feel compelled to point out that we can't live together already. Many people don't realize this.Passenger: I don't see why people get so agitated about gay marriage. It's just symbolic. Those people can live together already.
As a South African, i can visit my US fiance—we can even get married in one one of the states that allow it—but i cannot stay in the country for more than 6 months at a time, and i cannot gain permanent residency or citizenship as a spouse. To the federal government, i'm only a tourist, and non-heterosexual couples are nothing but legal strangers. We don't get to sit at the back of the bus: we have to leave the country.
(For more information about this problem, see Stop the Deportations.)