Everyone went out and bought handguns for self-protection precisely because large numbers of people were protesting about reducing police. Some were even rioting and looting, mostly in the "blue" cities. It's a stressful time with a pandemic going on, and changes in economy and society. Now everyone with new handguns are trying to shoot one another when they are angry, to dominate messy situations, but they are often not so good at using the guns so there is lots of "collateral damage". So there's lots more violent crime. So the results in 2021 are totally counter BLM goals:
Growing share of Americans say they want more spending on police in their area (Pew, Oct. 26)