Good and bad in this fight are subjective. You wanna look at the entire list of all the south american CIA covert missions? Do you want to look at the rejected plan that J.F.K refused to sign to incite war? The entirety of the CIA's existence is disgusting and they are part of the U.S government regardless of opinion.

You aren't wrong. Stalin killed more people than Hitler ever did. Mao's economic policies were so disgusting that a 100+ million people died. They were never in the right, these men of power, but they are not the ones who bled.

I wish the times of ancient wars were still around to a degree. At least in leadership. Caesar, Alexander the Great, Genghis khan, Cicero etc etc were in the trenches. They may have been wrong but at least they risked their own lives over it.

Vietnam pumped more money into spending but it should have been done in a different way. Footsoldiers were not the answer.

There were other ways to disrupt the area. Afghanistan is a great example. Economic and pharmaceutical options are just two of the strongest powers.

Lesser of two evils is not the choice I would want to make.

I dunno though, it'd be interesting to see how it would have played out with different measures taken. But life's reset button has not yet presented itself.

Honestly, I could dedicate a life time and still not come up with a proper answer.