What they would be excellent for is combine them with Stinger anti-aircraft missiles and use them like the mujahideen in Afghanistan, turn Ukraine into one large guerilla war and make the life of the Russians miserable, perhaps throw in IEDs and see what happens.
There is a big difference between Ukraine and Afghanistan.
Ukraine actually has buildings and infrastructure and railroads, and factories. Afghanistan is a mountainous desert with nothing outside of Kabul. Ukraine can suffer Billions in losses from bombs and rockets. Afghanistan only creates dust storms.
Yeah let’s speculate for a moment let’s say that Putin wins in Ukraine and comes into possession of all these American Stinger missiles. Then let’s say Putin sends gorilla fighters up across the southern border armed with American Stinger missiles. The government won’t be able to do their big CSI thing and that’s about as bad as optics as you can get.