Riots are response to systemic racism:
https://dw.com/en/world-cup-why-do-morocco-fans-keep-clashin...
As are the issues Americans are facing.
Here an article actually of Belgium about it, even in their own community where they say they are tired of the youth rioting: https://www.hln.be/video/productie/marokkaanse-gemeenschap-i...
Additionally, same behavior over Europe...
Riots are response to systemic racism:
https://dw.com/en/world-cup-why-do-morocco-fans-keep-clashin...
As are the issues Americans are facing.