This is like asking a wealthy businessman "is income inequality real?"
The rich man has worked hard for his money, and therefore, he feels entitled to whatever benefits that his wealth provides.
He simply cannot understand his position of privilege, because he has been protected from certain social barriers to success, i.e. being brought up in a poor and criminalised environment, lack of education, lack of family life. Without having experienced these things, he cannot relate to the concept of income inequality.
The War on Drugs is a bad thing because it's done nothing but only create an inflated prison population that waste money along with breaking families. If the government spent the billion dollars they used on imprisoment towards drug rehab, jobs and education there would be less deug dealers and gang members.
Also the War on Drugs doesn't go after kingpins. It's mostly locked up dealers with minor posession for an immense amount of time.
Last the WoD is racist. There was never a War on Drugs for white neighborhoods with high drug use only when black neighborhoods had the heroin and crack epidemic.
Whites and blacks use and sell drugs at the same rate yet blacks receive more jail time, three strikes laws, and mandatory minimums where they receive more time for the same drug (crack vs. coke)