I'm not sure you understand how institutional and systemic racism works, but that kind of racism affects all people of color. That some individuals receive worse treatment than others in such systems doesn't mean that the lesser affected individuals aren't affected by that racism, nor does it mean that if you have other privileges (say, class) you are protected from the effects of those systems.
When it comes to implementing policies to address that, you look at who the systemic problems are affecting and you make choices to help address those effects. I'm sure some people with some arbitrary SSN are a person who is affected by institutional oppressions, but people are not targeted for inclusions in those systems based on SSN, so that's not a metric worth targeting when implementing policies (although if it can be demonstrated that there is a significant link between SSN and institutional racism, that's another story).
When it comes to implementing policies to address that, you look at who the systemic problems are affecting and you make choices to help address those effects. I'm sure some people with some arbitrary SSN are a person who is affected by institutional oppressions, but people are not targeted for inclusions in those systems based on SSN, so that's not a metric worth targeting when implementing policies (although if it can be demonstrated that there is a significant link between SSN and institutional racism, that's another story).