Can Racism Exist Without Minority Group Members?

I do not believe that racism could exist without minority group members because their would only be the superior groups left fighting for dominance. The superior groups left would still have the same equal opportunities as before. Racism is more than one group not liking another. It is the fact that superior groups benefit from the struggle of minorities. Superior groups are almost guaranteed to be able to own a home where ever they want or be able to get the job they want unlike minority groups, so without the minorities, they still have the same likelihood of getting what they want.