Parent meant that almost no white collar crime gets prosecuted or results in jail time for defendants. Which is a very fair statement to.make, no conspiracy involved.

The claim is that the makeup of the prison population would be different if the law was as expeditive and indiscriminate with the well-to-do as it is with the poor: the entirety of Enron in prison, of VW, of Uber, etc.

Your correlation is by and large about criminality among the poor. It would still probably hold in the above scenario, but you can't claim it looks at "criminality" full stop.