Except that there were plenty of people who did not have faith in postwar America, didn’t not fear the Russians, and rebelled against the homogeneity of the mainstream culture, well before the 60s revolt. And there were certainly people who could put two and two together about our actions overseas. People in the 1950s and early 1960s (many of whom are still alive and well today, of course) were no less capable of critical thinking than we are today. I’d argue that the biggest difference is that there is more of a chance to publicly voice dissenting views today (social media and the shift to an information etc) and to get a hearing from the general public, as well as there is a much less unified media landscape today, with media outlets actively competing for viewers by appealing to our sense of righteousness.
That goes back to the 1970s, a very real outcome of a) revelations of lying by our government, and b) a right wing propaganda campaign to make the government small enough to drowned in bathtub in order to dismantle the New Deal liberal order that benefited the working classes and later minorities.
There seems to be plenty of people who despite being skeptical of the government (which I agree is a real phenomenon - though it often is expressed through partisanship as opposed to just anti-government sentiment), are fully in support of the war on terror. At least plenty enough millennials have signed up to serve overseas. Plus, how many work for private corporations that do the dirty work and get paid pretty well for it.
A promise that never existed for many non-white Americans, of course.
The most cynical ones seem to be the Trump voters, who are overwhelmingly boomer, white, and upper middle class.
That may well be true, but it’s due to long term historical changes, not anything inherently wrong/unique to the millennials. And I’d say that many boomers and gen Xers are likely wise skeptical about the government, however they might have felt in the past.
I don’t mean to flog this dead horse, but the whole “these kids today” tropes just seem really ahistorical and kind of blinkered to me… given that “they” said the same thing about my (our?) generation (Gen X - remember the whole “slackers” designation) and the boomers, too. Since the 50s, there has always been handwringing over the youth today, and I’m not sure it’s doing much to help us understand the actual zeitgeist of our collective lack of trust of our government. I do think we have very good reasons to be mistrustful of organizations like the NSA or the CIA, but we also have good reason to think that we can correct at least some of the problems of these institutions - believe it or not, sometimes congress actually is responsive to problems of governance with regards to bureaucracy.