Whether or not blacklivesmatter should be held responsible for anything is very debatable and actual facts vs speculation are very hard to come by.

I think maybe something in the middle that can maybe perhaps if you try a little, be agreed on is that there's lots of people stirring the pot using the #blacklivesmatter hashtag. That's really about the only thing I could pick out of this mess as an actual fact. A weak minded person will respond to pot stirring. Heck,t hey was things are going these days reasonable people will respond to pot stirring. Including myfineself.

I could be wrong.