Well, obviously. Any isolationist policies that can span 2 decades and 3 administrations can surely haunt us into the 1960s as well.
Who were the posters that actually did blame Nixon?
Some of my hardcore Democrat friends/family (much to the surprise of current Republican toadies, my libertarianism doesnt agree with these people) also think Vietnam was Nixon's fault. While it is true that he (and Dulles) had proposed military action there as far back as '54, when the actual escalation started Dick was too busy yelling at the California press in the midst of a hangover.