Earlier quoted context omitted.
Then it's a failure in marketing, as the fire deparment doesn't market itself as "department for throwing water at houses". Maybe BLM should be more clear about its goals? I'm not really up-to-speed with US politics, but I know it's horrifying how easily and with impunity the police have been killing black people. Still, "Black lives matter" isn't a great slogan, and calling "all lives matter" racist definitely seems…
Yeah its a knee-jerk reaction and sad. The more accurate slogan would be "Black Lives Also Matter" but that isn't as effective. I think we all really understand that's what "Black Lives Matter" means. The real question is, why the strong counter-reaction? Why the sophistry around the slogan? What is that covering for?
A group of people is experiencing horrible and unjust treatment. The implication of the situation is they don't matter, and the correct reformist statement is that they do matter.
Black lives matter also is not the correct statement. It is the correct understanding of the while situation but you need to keep in mind the nuance of language.