Do you have a problem with the right of the state to determine its own laws? Did you know that the original anti-drug laws were enacted by southern Democrats because they wanted new ways to put blacks in prison to work on their prison plantations? Did you know that law was declared unconstitutional by the Supreme Court? Did you know that FDR threatened to expand the Supreme Court to 15 members so he could pack it with yes men in order to get his unconstitutional laws to pass constitutional muster?
If it was up to me, I would eliminate about 98% of the federal power because it is unconstitutional anyway.
The first anti-drug law was in SF related to opium and it was biased against the Chinese, not the Blacks. By the 30's, ALL states had anti-marijuana laws.