The problem with racial ghetto's isn't the race part but the ghetto part.
You put any large group of poor people in one area (Regardless of race) & you will get trouble of all kinds.
Poverty breeds crime & social tension, over skin colour, religion, football team or anything - these are the excuses for the violence not the direct causes.
Solve the poverty problem - you solve the ghetto problem, ethnic or indigenous.
I can understand the frustration, as people who live in crime ridden areas see a new group of people arrive (Who are usually poor) then blame the crime on whatever physical properties they posses - ignoring the underline causes.
It's a pretty simple case of -
http://en.wikipedia.org/wiki/Fundamental_attribution_error
Cheets64 is correct about some of the behaviour (albeit seems to ignore it when white people do it) but wrong about the causes.
One thing which can't be ignored is the attitude towards women, which certain social groups are about 100 years behind, this will have an impact & the sooner we stop this nonsense that we should respect other cultures the sooner we can make progress.
Nobody should get a free pass to oppress women/gay people or any social/ethnic group under the guise of culture.
Notice the distinction between race & culture, it's important.