It looks as though Maggie Gallagher may be wrong in her pompous assumption that marriage equality is not inevitable, as same-sex marriage has just become legal South of the boarder as well.
From Jason Shaw:
Mexico City has become the first city in Latin America to legalise gay marriage, giving same sex couples a lot more [...]

Lawmakers are currently working towards making Argentina the first Latin American country to legalize same-sex marriage. They would become the second country after Canada in the Americas to end marriage discrimination.
A growing number of supporters in Argentine Congress began the debate last Thursday on whether or not to change the law that defines marriage as [...]