We haven’t won any wars since WW2. Agree. We have been fighting wars such as Korea and Vietnam based on so called entanglements, not because they attacked us, except for the Taliban and AQ in Afghanistan. We should have focused on them and not Saddam in Iraq.
We are sort of on the same page; you’re just wrong about Nam. It’s NOT that we got pulled into that one, by Jackie Kennedy ( who elected her?! ), but because we did NOT fight to win!