Ma'Khia got herself shot because she was a "very loving, peaceful little girl," until she tried to stab another girl. And that's just it, she probably was a loving little girl, with all that that entails, until something went wrong, drastically wrong. Then she became a stabba.
The problem here runs deep. Force, in the end, will solve it because we've apparently run out of reason. In the meanwhile, here's my kid from the Army in South Korea, "Dad, could your generation please sort it out, before we have to."
I'm afraid, Son, that the boat has sailed.
Your Old Pal,
LSP