You’re not wrong about the Taliban, but it is also untenable for American forces to remain in a country after trillions of dollars, two decades, and so many lives were lost when Afghans were never going to fight for themselves. Evacuate everyone who wants out, leave behind those who choose to exist under Taliban rule. Treat it like Cuba but with more support for those who intend to flee (arranged safe passage through diplomatic and military supply chains, for example).