Let's not forget this phase of the space program was in the context of the Vietnam War, and well as other social issues (e.g., poverty). Even MLK was shifting f

Let's not forget this phase of the space program was in the context of the Vietnam War, and well as other social issues (e.g., poverty). Even MLK was shifting focus to the injustice of income inequality. Going to the moon was, in that context, seen as another foolish government effort. Few, and for good reason (at the time), were willing to get behind another bloated government idea. If there was no war, the perception and support shifts. If there was also less other social unrest, the perception and support shift again.