This is why the BLM people want the white people with them because they can then say they are White nationalists doing the dirty work. The white people don’t know they are being used for that purpose but they are.
You’ve miscalculated. The white anarchists are fully on board with being “mistaken” for white nationalists. It’s all part of their game plan.
As for BLM duping them, that’s a two-way street.