Had there been no Pinko Intervention on the Vietnamese behalf, and had our troops carried out the tasks needed to get the job done, of course we could have easily won that war. Chances are we could have done it the same way we did Desert Storm. The Unites States should have had a media black out, rode into North Vietnam, wiped out the source, then came in from the south, and boxed them in. It would have been better than quitting the war because of unpopular views at home.
Jane Fonda has a lot to answer for as do a great many other communist sympathizers.
That's the big 64 thousand dollar question. If we have a media black-out the public goes crazy, it we allow them free access they could (maybe not intentionally) do great harm to the troops, so what are we to do? We don't want our troops put in harms way, we don't want our right to know infringed on, sort of a catch 22.