Ah yes, "just stop". I mean, but all means - please do.
>> Did our adventures in the middle east advance US interests?
They made a few american corporations extremely rich and justified balooning the military expenditure. Whether that's in US interests or not - you decide.
>>It's called overextension
It's part of projecting your might as a superpower. The same reason why American taxpayers are paying billions of dollars to station troops in Eastern European countries - not out of charity but because it's explicitly in American interests to do so. International Aid is the same - "we're giving you money now so that we don't have to spend more money fighting with/against you(cross out one) in the future". "stop getting into wars" has the same energy as "just stop tipping" or "just stop spending so much money on the military" - imagine how quickly your entire national debt would be wiped out if you did that!