Canada seems to be second from the top in that scale (though I have no idea how you would choose the scale for a chart of "ethnic diversity"), and only 7th from

Canada seems to be second from the top in that scale (though I have no idea how you would choose the scale for a chart of "ethnic diversity"), and only 7th from the top of this "happiness survey". I don't think either dataset is gathered reliably, but if you're looking at a correlation there, there are glaring exceptions. As somebody who lives in Canada, I think cultural compatibility is important, but ethnic homogeneity is unnecessary. Ethnicities are generally a proxy for cultures, Canada has a great deal of success in separating the two, though the prime minister doesn't seem to get it. Anyway, not a hard-and-fast opinion, but I think ethnicity is a weak bond, and probably should be.