Capitalist oligarchs are the ones who rule society, and so if there are problems in society, the fault ultimately comes back to them as they are the rulers. They, however, will never admit responsibility to anything, and so they will always seek to shift to blame to other people, but they are the ones who rule, so their blame must be shifted to the non-rulers, i.e. to regular people. Shifting the blame to all of regular people would be vastly unpopular, and so they instead pick out a subset of regular people to blame. Whether it is Jews, Somalis, transpeople, immigrants, etc, it is always the fault of some minority group of people who have no political power, and it is never the fault of those who control everything and are in the position of power to make all the decisions.