There are white folk oppressed by black folk but that number is VERY small and isolated to no more than three countries, and nowhere near victims of genocide. For fuck sake, I hate how the word has been overused, I suspect that certain groups are trying to destroy and downplay the meaning of 'genocide' to lessen the negativity of the public's opinion of Israel. The only real one happening is Israel wiping out Palestinians/Muslims, maybe China wiping out Muslims, but recently they've been tossing the word around to describe pretty much any slight violence:
Norway (This might be legitimate, but this is the only source that describes it a genocide)
The UK government used it to describe something mundane as well