Great questions.   I was pretty young, but I think i was opposing the war by the time LBJ resigned.     As a family we were anti-war early as my brother is 5 years older, in college, but illegible for the draft.

And then you had the social changes that were a response to the very high conformity in the work world in the 50's and fathers that worked long hours, then feminism, which again allowed women much more opportunity for life choices, but removed an important support for their children if the father didn't pick up the slack, and most didn't.

I've thought for a couple of decades that world war has to be out of consideration, I doubt anybody wants to start a nuclear conflict between the major nations.   Putin is an ass, corrupt, violent, and willing and able to use his KBG background to control dissent.    I have no problem with the Russian people, but I do not like having allies with corrupted values.    Trump wants his company to build in Russia, that the basis for interest.