Yes, he could exit those countries hastily. But that has its own cost. Getting in wars is the easy part. Getting out of one is the hard part. Ask Putin who went into Ukraine on a 3-day limited special military operation.
Bush Jr. got us into multiple wars and unlike his father did not limit the scope of them. His father did get us into a war with Iraq but was smart enough to keep it limited in scope.
Also, under Obama, the "wars" were not real wars like the Russia/Ukraine war where both sides are losing hundreds of people every week. But they were more like peacekeeping operations that occasionally ran into skirmishes.
Every week? If we just look at the Russian casualties numbers, its around 1000+ casualties PER DAY.
There was a recent leak of the death toll and the most active area's had a 2/5 dead rate, 1/3 "missing" rate, and the rest was wounded.
If we only count the death + "missing" over the entire front for Russia, its 500+ PER DAY.
Ironically, the Russian->Afghanistan invasion was WAY less deadly then what we see today in Ukraine.
Your point still stands about the US evolvement in Iran/Afghanistan, but darn your numbers really way below the actual body count in the Russian "3-day limited special military operation". Those are numbers from the first year, not the daily of the third year.
You are likely correct. I have heard of the high casualty estimates, but wanted to keep it conservative to not have someone complain about the estimate being too high.