I think you're missing the point. Why don't more white people have warrants? Because all whites are responsible? Why are so many of the warrants disproportionately for blacks? It's not whether or not a particular person should have a warrant, but what about the enforcement is leading to such a disparity and being so lopsidedly oppressive for one group but not the other.
IMO
I just want to point out with what I see as a problem with your train of thought. I thought about it in the reverse because it makes sense..
"but what about the enforcement is leading to such a disparity and being so lopsidedly oppressive for one group but not the other."
What if that is the perception? If that is the case, then would that group of people feel inclined to follow a system they feel is against them..
"It's not whether or not a particular person should have a warrant"
It should be though, as the warrant means that typically justification was require to attain it.
"Why are so many of the warrants disproportionately for blacks?"
Well, I'd suspect that if a group, in this case those of black skin color was feeling a system was working against them, they might be less prone to following those rules, as they might innately perceive that system as against them anyways.
"Because all whites are responsible?"
I think this sort of high-lights the problem, all whites are not responsible, and they also suffer the consequences of their actions. I suspect this closes off with the last part...
"Why don't more white people have warrants?"
I think there is a matter of that whites more likely talk less about it, its unlikely to see a white song glorifying criminal activity in the last 80 or so years. We are also typically less tightly knit, ever notice theres no such thing as "white history month?" outside of maybe neo-nazi circles? Whites are taught that because they are white that they are the source of many problems others experience, whites are taught to suffer in silence, because to speak out is to be a racist. I think they have warrants, they just tend to sit down and eat it. I mean some of the most notorious monsters on trial are actually white such as P. Bernardo, R. Williams, J.W Gacy.
I think sometimes people commit crimes, sometimes they get away with it, sometimes they don't. What if on the flip side...sometimes we hear about it, sometimes we don't.
Just some food for thought.
For what its worth however, I do believe that black skinned people in the USA do get the short end of the stick, but I do also believe some of the most public ones are not the ones whom need defending, but rather the stioc unsensational individuals who are stuck languishing in a cell, or forced into poverty for crimes of circumstance.