The KKK has a history of orchestrated mass killings, of assassinations, of lynchings, so on and so forth. You really ought to have picked some other group to make a comparison to. Granted, I haven't exactly read BLM's "manifesto" but I'm going to bet that their leadership isn't going on TV and saying "kill whitey" - the federal government would have clamped down so hard on them they'd have been gone before you could blink.