I guess I can only speak from my experience. Most of the instructors and blackbelts who taught me were working on advanced academic degrees as well and actually cared about their students learning all aspects of the art. No meatheaded dudebros whatsoever. They would never even consider promoting that type of buffoon.
Sorry to hear your experience wasn’t the same.
That’s somewhat hyperbolic, though it’s a worthy concern. I live in the US and none of my encounters with police have been like that whatsoever, but then again I’m white and midwestern and not financially underprivileged. I’ve seen cops thoughtfully de-escalate or give genuine selfless help firsthand.
I would still say ACAB, but that’s moreso due to the very abusable powers and excessive undue protections that political states give them. It’s a systemic problem, but not proscriptive of individual encounters.