If he would have specifically said "Johnson and McNamera didn't know what was going on" I could agree with him.
The problem is that the lying, weasels DID know what was going on. McNamara confessed to this finally in a self serving book he wrote several years ago.
LBJ/McNamara/Clifford and all the rest deliberately prevented us from winning in order to have enough money for their (failed) Great Society Program. By the way that is where your Social Security money went too. Johnson and the DemocRATS dumped the Social Security trust fund into the "general revenues" of the Budget.Spent every damn dime of it too.