This turn of events makes perfect sense in perspective. When you live through a dictatorship and start to form a democracy, the public will be in far in excess concerned about equality and human rights. They will go far over board on having as much equality possible in the new government, in a attempt to make sure that a dictatorship cannot happen again. Gay marriage would fit under this, and how the public would see this as more equality and less totalitarianism, and you demand that it come into reality.
Which also explains why America is slipping the way it is. We are accustomed to our rights and do not know how it is to live in a world where you can be discriminated against for any number of reasons.
Which is why it would be amusing to see fat people be legally barred from getting a marriage here in America. Most of the christian anti-gay arguments can also be applied to fat people, since after all gluttony is a sin as well. Would be amusing to see fat, white, christian Americans demand their liberty and their natural right to marry, while at the same time condemn gays from doing the same. Hopefully the rest of the nation would see the cognitive dissonance at work and be appalled by it.