Where did I say Nixon was my hero? I said he got us out of Vietnam... LBJ's war
So yah, LBJ didn't want to be tagged as having lost the war. It was never our war to begin with, LBJ would have done better (my opinion) to cut our losses, recognize that VN was a hopeless military/political basket case, & allow the patient to die with whatever dignity it could muster. After years of effort, piles of money & equipment & personnel (military & spook & diplomatic - both US, Allied, & VN), & giving diplomatic cover to a series of feckless regimes, we'd done all that was reasonable to do.