Stop comparing alcohol and marijuana.  There is no relation at all.  About 25,000 people die very year in alcohol related car accidents.  The simple fact is alcohol  was traditionally consumed by white people, hence the legal consumption.  Marijuana traditionally was consumed by blacks and Hispanics hence the laws against it.  This is no longer the case.  Now both alcohol and Marijuana is consumed by blacks, whites and Hispanics.

I would think that Sessions has more to worry about in this country but they don't want to get rid of the cash cow that keeping Marijuana illegal produces.