Addiction is a tragedy. Supply of drugs are neverending and it is usually only the smallest players that get arrested.
1 in 100 adults in the United States is incarcerated in prisons and jails. Over 2 Million people, this is by far the highest in the world, even more than more populous countries like China and India. A large amount of these are for minor drug offenses.
The big players that profit from the drug trade are Banks where money is laundered. Banks fund politicians, even Democrat Barack Obama's top contributers are Big Banks.
U.S. Foreign Policy over the years has looked the other way. To help overthrow the democratically elected Sandinista government in Nicaragua in the 1980s, cocaine was shipped to the U.S. in huge quantitiies, with C.I.A. knowledge, with profits funding weapons for the U.S. proxy army the "Contras."
The U.S. invaded Panama saying Noriega was a drug dealer( real reason he wasn't Pro-Contra enough), under his replacement Guillermo Endara drug trafficing INCREASED.
After the U.S. disposed of the Taliban government in Afghanistan, it became the world leader in Heroin production.