re: Somebody enlighten my privileged white arse on why #AllLivesMatter is racist

Agreed. See now that wasn't hard. We can find common ground.

BLM is lecturing the WRONG people. They are wagging their finger at people who already know this. If they want to prove the point that black lives do indeed matter, they should address the problem of black on black homicide, which results in around 9000 dead blacks per year.

Just like I can't abide a pederast priest lecturing me on my morality, I cannot abide a loud-mouthed criminal/racist/dirtbag who has no understanding of Individual Liberty or The Rule Of Law lecturing me on how I need to behave. I will not accept moral instruction from those who have no interest in good citizenship.