> I've stared to resent a little that even though I'm Mexican, I'm not considered Western. […] about the culture

Don't worry, you are part of Western high culture. Anyone who would not acknowledge this as true is quite ignorant of history.

Many of my thread neighbours are astonishingly unable to provide an accurate definition of our culture or have the wrong idea in their head. The toilet and eating utensil preference is not important, but the shared values are important: guarantees of civil and human rights, living in freedom, rule of law, equality, individualism, tolerance, practising liberal democracy, society implementing market economy with free wage labour and historically shaped by Christianity and Enlightenment.