People prefer to see all evils as clustered against all goods

Evidence

The human mind prefers to think of the evil things in this world as clustered together in opposition to the good things. There is an agreeable cognitive simplicity in dichotomous evaluation. It would be most satisfying to find that communism and fascism are somehow alike and that we have, all along, been consistently opposed to this quality they have in common. — John T. Jost and Jim Sidanius, Political Psychology, 671