There is evidence of institutional racism vis a vis the deleterious decadal effects of racist policies from the HUD/FHA on down to exclusionary deeds on real property which essentially herded in black families into high density areas bereft of adequate educational centers, nourishment, occupational attainment, and safety. These areas were then isolated through zoning by racist and segregationist city councilors/city managers/codes enforcement. Which then necessitated the increase in policing to ensure these generational impoverished people were forced into lives of criminality to protect assets, both cash and real estate from property and violent crime.
Anti-fa is an organic response to the substantiated rise in hate and white supremacy groups that exploded after the inauguration of Barack Obama, who were engorged in ranks once Trump took the helm of the Birther conspiracy, among other general hatreds and falsehoods predicated onto the country during Obama's tenure. They have roots in Europe, as they have been part of a contingent of anarchists whom protest any G8, G20 gatherings in Europe. They have increased ranked here in the US due to the very real rising tide of white nationalism and fascism that is occurring before our very eyes.