Religion/ethnicity is not the main issue, it is poverty. ???
...................

It is both.

The Mulsims want a seperate community with their own laws, but they also want all the benefits of citizens who obey the state laws.
This is also true in the Netherlands, Germany ...
Assimilation is anathma to Islamic law.

This conflict is of course compounded by poverty and teenage energy and hormones.

Until there is a freedom from religion, these conflicts will be part of the landscape.

ergo it is forever.