Think about it.

Violent authoritarians are ready to ruin you and destroy your life if you don't utter the phrase they demand you utter.

Eventually they're going to expect every written communication to end with "Black Lives Matter" and/or every introduction for public speaking to start along the lines of "Good Morning. Black Lives Matter".

I'll be goddamned if I'm gonna be forced, coerced, or threatened into uttering that phrase, especially in the context of preventing myself from getting fired or harmed.

Fuck BLM.