A theme I have touched on several times in my blogging is that the best way to defeat racism and other forms of invidious discrimination is to develop and apply objective psychometric tests.
Usually I make this argument with respect to IQ. But: one of my commenters, an obnoxious racist who I refrain from banning only on free-speech principle, recently argued that drug use should be (as, in fact, it now often illegally is) treated differently by police depending on the subject’s race.
His argument (if you want to call it that) is that blacks, due to a low baseline level of self-regulation, are significantly more prone to criminality and violence than whites when intoxication further impairs that ability. Thus, the law should treat these cases differently as a matter of public safety.
As presented, this prescription is racist, repugnant, and wrong. Because even if you believe that blacks as a group have less ability on average to self-regulate, this belief tells you nothing about any individual black person. Acting on it would infringe the foundational right of individuals to be treated equally by the law.
But now let’s perform a thought experiment. Actually, a couple of related ones.