You probably don't know who the Tenors are, or that they're Canadian, unless you've looked at Twitter today.
Instead of some stuff about glowing hearts and the True North (some of the best lines, IMO), they busted out white supremacists' favorite way to dismiss the Black Lives Matter movement and sang "We're all brothers and sisters. All lives matter to the great." They also held up a sign with the new lyrics, in case you didn't catch it.
It turns out the uncle in this case is named Remigio Pereira, not Dave, and he acted as a "lone wolf." Here's the statement from the, uh, trio: