Agreed. Tech is and should never be political.
These kinds of statements also basically says you are not welcome if you decide not to support movements like BLM. Perhaps as a user it does not matter, but imagine if you were a maintainer?
Best to keep these discussions out of Rust and other projects as much as possible. So yes, you are not alone in this.
I have to point out however that there are aspects of just pure human decency that should be a given in any kind of collaborative project.