A guiding principle for physicians is primum non nocere, the Latin expression for "first, do no harm." In order not to do harm, whether it's with medicine or with public policy, the first order of business is accurate diagnostics.
Racial discrimination is seen as the cause of many problems of black Americans. No one argues that racial discrimination does not exist or does not have effects. The relevant question, as far as policy and resource allocation are concerned, is: How much of what we see is caused by current racial discrimination?