Afganistan is a Very poor country wilth no source of living for there people, several thousands of people cross border everyday to make there living into Pakistan. But it is also beneficial for Pakistan, getting low wage workers which is driving Trucks or building your homes at cheaper prices, contributing into your economy .
Once there comes stability, Afganistan which is blessed by God with huge resources of Gold, Silver and other precious stones, Cooper, Iron, Rare earth (currently china is 90-95% producer of total production of rare earth) including Lithium (useful in future for electric cars) and oil & gas. The utilization of these resources will make Afganistan similar to UAE and then your country people will enter in Afganistan for jobs. Why making your relation bad with neighbor ? No doubt today India is investing huge money in Afganistan but in future India will get huge -2 dividend on its investments
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If you forcefully try to capture their Land then of-course both India and USA will come to defend, then suerly you will be big looser
