The problem is that even if people aren't protesting everywhere, something over 1/2 of the population supports BLM.
Here there is a need to clear away the ongoing smoke and propaganda - and define some important factors.
Due to the social climate where we live and the general nature of those with whom we associate, it seems like no where near 1/2 of our populace "supports" BLM - and certainly not supporting their outrageous behaviors and statements, disparagement of LE officers, tearing down statues, looting, demanding special treatment and government handouts, etc.
Now, if your very broad/undefined term "supports" means the folks that decry the police killing of that fellow in Minneapolis, want zero bias in police and legal actions, support the value of equality and fairness to include all people, and want black people in general to be able to see and know that their lives matter - then I would say that the support is way more than 50%
