You're exactly right.

Following the Koran to the letter, which is what Islamic fundamentalists do, means the women will be wearing hijabs and treated as second class citizens. It also means drug dealers will be beheaded.

When the Taliban took over in 2000, that's exactly what happened. Heroin production dropped by over 50% when beheadings became the standard penalty for cultivating heroin.

Many of those in the Taliban had been armed by the CIA to fight against the Soviets. When the Soviet Union collapsed, it created a vacuum of power in the region and the Taliban emerged.