Your point, BTW, was "For Wars that are justified like WW2 and if we enter a war win it.....Don't cut and run like the left wanted to do in Nam.". Thus this doesn't cover Nam because it was not justified. According to your statement in order to not cut and run, a war must satisfy 2 requirements. It must be justified (like WW II) AND we must enter a war to win it. Which of course suggests that war can be entered into when it is not justified or when we are not intending to win it.
As such, Vietnam does not meet your requirements for not cutting and running as it wasn't a justified war (and one can argue that with all the hamstringing we did to our own military, we were not intending to win it either) and thus cut and run is acceptable.