About a third of the economy in Afghanistan is based on the opium industry. Many ideas have been tested to change this, but so far no good solution exists. If you have a good idea you will be rewarded.
Perhaps we should eradicate https://en.wikipedia.org/wiki/Papaver_somniferum ?
Sorry, but it's not our problem.
Wipe out the crops and let them figure out what else to grow. Either the world is serious about the drug problem, or it isn't.