That's an awful lot of generalization. Of course the wealthy donate more money than the poor. Some of it is to make them feel good, some is for tax purposes, and some is because they generally believe in whatever it is they are supporting. The real BLM movement is not rioting. Yes there are blacks, whites, and any other race claiming they support BLM while really just using it as a front to be lawless shit heads, but not every wealthy white person fits the mold you describe.
This isnt what you originally said. And I stand behind what I said above about the BLM movement. Dont contort Antifa and BLM together.