They're not Amish.
They're black.
Several generations of leftism practiced in US cities has produced a population of black spoiled brats who never grow up. They have adult bodies (and use them), but they have the mentality of an ill-raised 8 year old.
Their recreational rioting was bad in the late 1980s, when I saw it first hand. 20 years of additional social degradation have made today's recreational rioters far worse.
There's no peaceful solution to this problem.
But you already knew that. ;'}
I'm just not finding the (Amish|Swedish|Whatever) joke very funny any more.
———a population of black spoiled brats -——
No, they are feral degenerates who are reverting the their tribal roots and reestablishing the ancient village mentality in the modern urban setting.