This is literally what he sent me:
You're offspring will reap the demise off your ignorance, be it slavery or another form of retribution. You're unwillingness to acknowledge injustice will bring the wrath of vengeful and irrational beings, seeking reparations in blood. I sought to enlighten you to a reality you were not privy to through the stories of people who lived those hardships. Those "criminals", as you call them, will come to eternally rob you and your next of kin of light... I wish the best for you.
Really fucked up stuff, this was a good friend of mine. What happened to people?
I think if someone ever said that to you were they ever really your friend? idk..
Thats easy to say now, but seriously this is a guy who i spent many nights with ranting about our troubles and lives.
Just a thought because I try to put relationships above politics, as hard as that can be sometimes. If he spent a lot of nights with you ranting and you clearly felt that had value, then maybe he could have just raged about BLM and all that bullshit and you could have just heard him out and not counter him. I don't mean to assume what went down, so forgive me if I don't get what happened. I have people in my life that are all blm and such. I just let it go and know that even if they don't get it all, they are trying to do what they think is right.
However, I can't imagine what you could have done to deserve that bullshit note. So maybe you need to let him go, for the both of you.