If you look them up, anti-fascists (antifa) would most likely align, in their non-aligned way, with Black Lives Matter. The fact that white men are out there doing damage trying to ramp up the pressure on the BLM protesters tends to show their antecedents as White Supremacists and other anarchists. Months from now sharp reporters will piece together the social media messages, but for now, they seem to be achieving what they set out to do. And Trump offers mis-direction by calling them antifa.