Personally I think there is a big difference between WWII and the subsequent wars and because of that difference we are seeing more bizarre aftermaths. I come from a military family so don't think I'm a far out radical. WWII was embraced as a National cause. It touched all families in some ways and all citizens were impacted by rationing, workplace changes and alot of subtle propaganda via newsreels and magazines. There was a demonization of our enemies to the point that as children we were all afraid of the Japanese...and to some extent the Germans. The images and news we got were aimed at uniting Americans of all ages against the enemy.
Korea was vastly different because not so many families were impacted, alot of people thought we should "leave them alone" and the coverage was limited. Then when Vietnam came along there was a huge difference in media access. Every night on television the average American saw "war" in real time.As a result there were protests that also were televised and written up in the newspapers/mags. The same people who thought we should "leave the Koreans alone" now became convinced we should "leave the Vietnamese alone". It was an expensive "conflict" and alot of negetavism arose. Now in more current history young people are being sent to far off places and with the media almost every one knows that there are violent acts perpetrated by Americans as well as the "enemy". It doesn't inspire blind pride like WWII did...not for citizens and not for those soldiers coming home after being a part of disillusioning deployments.
So, in my humble opinion, that is why PTSD is apparently rampant. The National support is not there for the cause or for those who lived through deplorable conditions. My brother is 81 (I think,lol) and when he was in his early 60's he happened into a lounge that happened to have a rather large group of Vietnam vets.
He called me a month later and told me "I finally talked about Nam with others who were there and it felt good." He had a family so there were opportunities for him to share but it was over forty years before he felt comfortable talking about it. Those with-o families or services internalize because what they lived through included immoral acts, loss of friends and fear. Really sad. The WWII vets were praised for saving our Country. Big difference. Also, very very sad. DDD