Why don't the allies push the Taliban perimeter back?

@questionWeaver I don't hate Biden, his supporters, or his puppeteers. I hate the sick ideology and depraved character that causes people to prioritize power, wealth, and luxury over human lives, honesty, and good will. Every decision Biden has made since he was posited as president has been a horrible mistake, and each one of these horrible mistakes has been intentional and insidiously calculated to achieve a goal. That goal is the complete demolition of the United States, its constitution, and traditional American values. It is to demonize ideas and principles like family, marriage, Christianity, patriotism, responsibility, accountability, discipline, respect, courage, hard work, and self reliance, in order to create an easily manipulated and easily dispatched population that will ensure certain people will remain in complete control of everything and everyone, and continue to live in luxurious decadence.
This act of defecation on 20 years of blood and treasure is by no means the worst thing these people have orchestrated.