JMA - So let me see if I understand.

Basically your solution to the insurgency/opium problem, assuming they are the same thing, is to threaten the Afghan farming population with the destruction of their farmland if they do not comply with our directives?

Allow me to point out two things.

1) Population clearance as COIN tactic has been tried in Afghanistan before. The Soviets pursued this strategy in both the south and the east post-1984 - it generated over five million Afghan refugees and killed tens of thousands, if not more. This did not work for them because the Soviets, just like the U.S. now, could not control the Pakistani or Iranian borders. These refugees came back across the border and continued the insurgency unabated.

2) Assuming your program was adapted successfully, would opium production not simply move to Tajikistan and Uzbekistan and destabilize those polities? When supply fell in Colombia during the Uribe war against the FARC, it increased correspondingly in Bolivia and Peru. It is currently behind a resurgence in Peru of the Shining Path.