The demographics of a largely white, young, and destructive group fit more with a movement known as accelerationists than Black Lives Matter.
The accelerationists, if you have never heard the term, are an extreme subset of white nationalism whose goal is to bring about chaos and destruction. The basic tenet of accelerationism argues that since Western governments are inherently corrupt, the best (and only) thing supremacists can do is to accelerate the end of society by sowing chaos and aggravating political tensions. “Accelerationist ideas have been cited in mass shooters’ manifestos — explicitly, in the case of the New Zealand killer — and are frequently referenced in white supremacist web forums and chat rooms,” Zack Beauchamp
explained.