I think you're missing the point with my remark - you can't simply exclude data points from a data set and draw reliable conclusions from it. In other words asking about non-white first world countries and then excluding a large number of them from consideration is poor analysis.
I think Pat (and myself to a degree) fear that our huge Mexican wave will one day rule here the way they do in Mexico.
Even after a number of generations? Why aren't we ruled by old European feudalism and monarchism?
Mexico is a good bit older than we are from pre-colonial times. Cultural shortcomings die hard.
Because our white European founders had some revolutionary ideas for a unique new nation and established same with a near perfect Constitution (which we are rapidly, sadly shredding).