The fact that you're more concerned about what white people will think about who's being talked about, instead of the fact that a black person was killed entirely without reason, shows me that you don't really "support BLM". MLK said the same back in the 60s, and nothing has really changed:
"First, I must confess that over the past few years I have been gravely disappointed with the white moderate. I have almost reached the regrettable conclusion that the Negro's great stumbling block in his stride toward freedom [...] the white moderate, who is more devoted to "order" than to justice; [...] who constantly says: "I agree with you in the goal you seek, but I cannot agree with your methods of direct action";"
https://www.africa.upenn.edu/Articles_Gen/Letter_Birmingham....