David,
Some say we are all either part of the problem or part of the solution. Which you are is for you to ponder, not for me to judge.
It is also said, if the shoe fits, wear it. Perhaps you felt hostility among BLM activists because the work they/we do is motivated by anger, justifiable outrage . . . . . or, perhaps you felt it personally because - and I am NOT judging here, after all I do not know you at all - but perhaps people were reacting to some White Privilege you unconsciously, ujnkowlingly, unintentionally displayed; "vibes" you gave off??? Just food for thought.