What are the 10 unfriendliest cities in the United States?

The 10 unfriendliest cities in the United States are Newark, New Jersey; Oakland, California; Atlantic City, New Jersey; Detroit, Michigan; Hartford, Connecticut; New Haven, Connecticut; Dover, Delaware; Wilmington, Delaware; Los Angeles, California; and Baltimore, Maryland. Interestingly, many of these cities are known for their diversity and most are quite liberal.