No, they are angered over a specific white guy trying to appropriate something that's not rightfully his to claim.
And they made it about race.
If a group of whites were angered about what some
black guy did, & made it about his race, that would
be racist. We shouldn't excuse or deny racism just
because it comes from some minority group.
Sort of like my own example how it would probably be equally unwelcomed if I insisted I'm Cherokee because of one line of ancestors and no tribal records or even real knowledge of them. That would understandable not be cool.
That's a red herring. You're not Cherokee for the
simple reason that you're not Cherokee in any way,
neither culturally, genetically, or phenotypically.