I’m not the one dismissing non-liberal history and trying to rewrite America and Vietnam.
I tended to agree with the republicans at the time, and was puzzled by JFK’s incompetence and knack for messing things up.
It's history.
And it's real easy for me to Monday morning quarterback the geopolitical mistakes made some 60-70 years ago and since.
The origins of the quotes you posted were the political beliefs in the US at the time. In retrospect with the aid of the history that occurs at the time and since, I have a informed perspective, not revisionist at all.
For example, had US politicians of the 50s, 60s and 70s known that Communism was not really expanding and was dying at the root, (USSR), we would not have been able to sell the wars that evolved from this belief to the public or anyone else, and each of the military interventions would have had to be fought on their respective merits and not fear of the future.
As to the future from here and now, I have speculations but no history to guide the opinions.
But I do have history to guide what I have written today.
As did I and still would have had I not studied the history written since, from a 50 thousand foot perspective that history gives me.
Rationalizing it, you can see why they thought what they did and I am not trying to dismiss them. It happened...It was what it was.
But I can't extend those fears and ideas to today's geopolitical situation, except to explain how many current political animosity is based on the past.
Russia is no longer Communist and even though the Chinese government is, they have liberalized it to the extent that it is no longer recognizable as anything but a authoritarian cabal.
Just as in the 60s, the Russians and Chinese act in a pact, with the goal to destabilize and defeat the US imperialists.
So that aspect has not changed at all.