Would you like to take the tour?
I go to Detroit a lot--a lot more often than someone in Iowa does.
Like ANY OTHER major city, there are good parts and bad parts.
Even the allegedly wonderful cities of San Francisco, Chicago, LA, New York, Boston have good parts and bad parts.
But when actual riots (sports or otherwise) break out in those other cities it's considered some sort of coincidental aberration.
Even though there have been 6 championships in the last 20 years and NO riots in Detroit, Detroit still gets stuck with the rep.
It's horsecrap, a cheap and easy cliche for someone to resort to. I'm sure you're proud of yourself.