What actually got my attention was this:
By contrast, only 36% of the total U.S. population lived in those metro areas.Much has been made about the City:Rest of Country distinction in voting patterns. As I have noted in other posts, there is both more and less than meets the eye in this distinction.
But the analysis also shows that unauthorized immigrants tend to live where other immigrants live. Among lawful immigrants – including naturalized citizens and noncitizens – 65% lived in those top metros.
What much of the data supports is that cities (city proper, not the larger geographical metropolitan) tend to have more inequality, more college educated, more productivity (maybe), higher violent crime, etc. You can now add, more foreign-born to the list of ways in which cities are unrepresentative of the larger electorate.
Neither good nor bad - simply different.