I'd correct Martin Luther King, Jr, and say that Rioting is the opportunism of those pursuing an agenda other than The Unheard.
I've never seen rioting, whether in L.A. following the 1991 Rodney King verdict, Ferguson Missouri, Baltimore, or anywhere else that it didn't do the most destruction to The Unheard. That it didn't destroy the jobs, property and businesses of precisely those the rioting was alleged to champion.
Yes, it is rather odd that a lot of the people I saw filmed on that inauguration parade route wearing BLACK LIVES MATTER shirts were entitled bearded hippie-looking white kids. I don't know whether their skin color would prevent them from being arrested, but certainly their parents will provide them, if arrested, with far better lawyers than the black kids.