To focus more on the actual topic, I see why you argue the risk of "wasting our blood and treasure on reckless foreign adventures while ignoring the rotting foundations of our domestic economy", in particular to a US audience. However, as empires fall it is not the worst. But not the best either.

Best would be to pull out, draw troops home before they are run out.

Worst would be catastrophic over reach. Doubling down in order to fix existing problems. Before modern warfare this often meant that the king and the army marched away and died in foreign lands. With modern warfare it has become a matter of total destruction of the ability to wage war, and with nuclear arms it is potentially the total destruction of, well at least higher forms of life.

Right now, there is no movement towards drawing down, but to soon to say if it will end in some nuclear gambit. One can hope that the US empire gets its Gorbachev evnetually.

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