It’s surreal how a quintessentially humanist motto has been made into a symbol of villainy.
Someone tried to educate the guy with an analogy:
which, to me, makes no sense at all. If, going with the analogy, your pet dog dies, would you be particularly consoled if someone said to you: "dogs’ lives matter"? Would it console you more than hearing that "pets’ lives matter" or "animals’ lives matter"?
(Unless, of course, you were conditioned to hear condolence in the formula "dogs’ lives matter" and an insult in "pets’ lives matter").
It’s all so big-endian vs little-endian!