Afghanistan was absolutely being funded and armed by Russia, China, Iran, and Pakistan -- the Russians basically pushed as many angry Chechens to head there, both to hammer the US, but also to get them out of RUS and killed or captured. There was the infamous shipment of .50 cal sniper rifles from China to the AFG that only got stopped because Dutch intelligence decided to doublecheck a few trivial details. 20 years of such incidents.
On the subject of being able to read OSINT tier speculations and statistics, credible-ish sources suggest that Ukraine has been taking 50% or less casualties -- at one point even as low as 1:6 as they were getting pushed out of Bakhmut. Still, I'd be willing to guess as high as 400k, maybe even 500k casualties. WIA to KIA ratio is probably better than the Russians, too, but nowhere near US numbers of 10%.
Exactly—so now imagine how much worse it would have gone for the US had the Taliban been armed and funded by 50 countries.
Of course, the Taliban were being armed and funded by other countries. But probably not 50.
about ~6000 were killed, or roughly 1/10.
by comparison Russia is on track to hit a million (1000000), by Summer 2025, with estimates of about 1/4 to 1/3 being "Cargo 200" (aka KIA). It's on track to exceed Iran-Iraq as most brutal conflict of the last 50 years -- and Iran-Iraq lasted most of the 1980s; this hasn't even been 3 full years yet.