because a ton of white kids are moving into the big cities right now
While that comment does not apply to Chicago (because the white kids never moved out), and I cannot speak for New York or Los Angeles, it is true for Detroit. Lots of metrosexuals heading in. It doesn't bother me, and I still want to move to Detroit myself (because of the urban frontier-thing, and I like to think of myself as a frontiersman). The only thing that will change is that there will be a grocery store when I get there.
Just be ready in your self- defense department.