> Part of the reason for this is the racism inherent in the US justice system
What's the root cause of that? A long time ago it was an economic incentive, but that incentive doesn't exist anymore. Today, I think, it's bias.
> instead must be lumped into the same group and called to account for the actions of someone that happens to have the same skin color
Because that's how the human brain works. It classifies things based on previous experiences. It is biased by design. You need to change the input to change the outcome.
Luckily, today, media is a huge part of the input and thus it is relatively easy to change.
> People choose to be tattooed.
Yes. But you are arguing on a different level. You are arguing in terms of fairness and guilt. I would agree with you on that level if that would be all there is to it. If there was a way that the majority could overcome racism by just wanting it enough, I would also agree with you. But in the real world you can not change the perception of other people without at least some cooperation to create an impression that creates a positive experience.
Some people chose to be part of a visually distinctive group. Others are just born into it. But independent of how you got into the group, the consequences are the same. Not because it is fair (it isn't), but just because that's the way humans work.
> "Be more visibly obedient to the cultural norms of racists"
You can change the cultural norms to avoid elements of racism, and you can change the norms to find a middle ground, but I don't think you can live in a world without bias without also having common cultural norms. People are always biased against those who live outside their cultural norms.