The vast majority of people do not have trouble generally abiding by the provisions of the Controlled Substances Act; and while that doesn't mean it's just, but it does mean it's not crazy for ordinary people to think that others could abide by it as well.
Very few people are even familiar with the concept of the prison industrial complex, let alone explicitly motivated to vote by it.
> Middle class young hippies were shocked when the system showed its teeth and banned a substance so that the movement could be targeted by the repression systems put in place... while that was the norm done toward people in bad neighborhoods.
Just as gun control is no longer typically motivated by racism, the war on drugs is not today typically motivated (to the ordinary person) by a prejudice against hippies or hispanics.
If you argue against a point nobody is defending, you'll change nothing.