Personally, I think saying only one group matters tends to read as supremacist.

https://www.dailydot.com/debug/facebook-headquarters-black-l...

That sign would never fly with any other race written there.

And there is additional context to the BLM movement, in that in both major cases, Trayvon Martin and Michael Brown, the perceived "victims" were proven to have initiated and escalated the violence.

Michael Brown was attacking a cop, and Trayvon Martin was banging Zimmerman's head into the sidewalk.

The whole thing leaves a bad taste in my mouth and imo Zuckerberg is on the wrong side of it.