and the rest of his fambly too.
When somebody says "big business" or "liberals" or "Jews" run this or that, ya gotta ask what they mean. Usually people dealing with such generalities are just steaming, not doing anything useful.
There are many identifiable interests in US politics, and the question is, what's the mechanics, and can you support that?
Vietnam was initially a popular war, because it was seen as fighting communism. There were always critics, but it became clear as we went along that the VC were not Soviet puppets, and more the point, what's our remedy? Johnson and McNamara realized by Tet that this was not a WW2 style war; that it was politics with guns, and Americans can't tell Vietnamese how to runs their villages at the point of a bayonet.
IMHO, McNamara and Johnson might have, should have realized it earlier. Just as a workman measures twice, cuts once, a strategist should think twice to save the damage of doing it wrong.
Nixon - like many Americans do - was listening to the voices in his head, and not watching what was happening on the ground. He may have actually believed that he could get peace with honor, but he had no reasonable basis for that. He was in fact resposnible for the clear majority of American deaths, which is one hell of a way to get us out - very much like saying that we got out of an ambush by dying.
I doubt that Nixon was responsible, eg for getting 18 year olds the right to vote. As I recall, that was a Democratic initiative, and the Republicans opposed it.
Whatever else happened on Nixon's watch is overshadowed by the critical events that he personally was involved in. Nixon's fatal persistence in Vietnam, against his representations and common sense; and his burglary of Watergate show in fact that his character is indeed that of a crook and used car salesman, and whatever the wisdom of some actions, he is not a person one can trust in any way, nor somebody that should be held out as a role model, any more than Cunningham or Agnew should be.
Interestingly, he came from a very strict, conventional background, and who knows what lesson should be taken from that.