I actually do understand, and at a far deeper level than you realize.
I’d ask you to read up a bit about the use of “popular fronts" and then ask if BLM isn’t one. I’m not sure how much you know about Marxist-Leninist Leftist and Anarchist ideology and organizing methods. I’m going to suggest read up on that so you won’t be taken in by the facades. Without that deeper awareness, you would ultimately be naive about who is pulling the strings and what is the real agenda.