[logicchop]

Just commenting about your first point (disproportionate arrests of black people for drugs). I looked at your link. I read it. Did you read it? The end summarizes its own alternative (non-prejudicial) explanation for the gap.

In a post about an article wanting to secure a "universal morality" I would be wary relying on statistical data that has an abundance of plausible explanations, especially when it's meant to be deployed against something on the scale of 'our very moral existence.' If the issue were "tribalism" you would expect minority groups to be persecuted to some extent greater than the non-minority group. But in the US, there are other minority groups besides blacks, and they tend to have a lower incarceration rate than whites. I'm not sure how to square that with "tribalism."