When The Day After came out, it was a huge deal. It literally had such a strong impact it directly affected the US' nuclear deterrent policy. When the Wind Blows and Threads, both British productions, also accurately reflected the ennui of the time.
Heck, you had a pop single hit #1, and the entire subject was accidental Armageddon.
https://en.wikipedia.org/wiki/The_Day_After#Reception
https://en.wikipedia.org/wiki/When_the_Wind_Blows_(1986_film...
Global warming was there, but seemed much less likely to cause the apocalypse compared to nuclear war.
Doom and gloom bombardment is everywhere, at least to some extent. Its covid, economy, ecology, politics, global politics, wars and so on. Then you go to some other place and magic happens - people are still cheerful, live like covid isnt a thing bombarding us from every direction constantly.
I am in paragliding course in south Spain now, and I can tell you. I've teleported into another dimension for 2 weeks. Regardless of all the cold hard facts, I like it very much, a breath of the age gone. Recharging batteries that badly needed it.
At the end its childishly stupid to not see forest for the trees, and living in semi-bearable misery over things one cannot change. I for a change have faith in mankind resilience and technologies future will bring, ie for cleaning up the mess we all do right now, by using devices to type/read this for example. Because we think its our right to have them, buy often almost same ones and brag on anonymous forums like this one about how much power one wields and how smooth animations are.
I am certainly glad we don't live under that kind of fear, even if we have something else to replace it.
Not just the generation you refer to (pre-boomers who would have some memory of WW2), but also boomers and us Xers also were also quite aware that nuclear war was a real possibility.