Oh, you're one of those types of people. Fixated on concepts. I don't mean this in a rude, or a mean way, but I just don't think we're going to get very far with any further discussion on the topic. You seem to have some fairly set-in-stone conceptualizations of how the government works, how people ascend the promotion system, and how much our past glory days are relevant. I was actually one of "those types" of people when I was younger. It took me a long time to break out of that rigid, "infinitive"-driven mindset, and to start trying to approach things more flexibly, and see them for what they really are, rather than as the "concept" I perceived them as. I doubt that'll mean much to you, but I want to at least have said it.
Vis a vis 5th Generation Warfare... I have, embarrassingly, been pretty heavily invested in that kind of thinking as well, back when I was younger lol. In my instance, it was William S. Lind's theory of 4th Generation Warfare. Eventually though, you notice. You notice that these aren't things. They're not real. All they are, are re-packaged, re-branded amalgamations of already existing and matured concepts. Nothing about 4th Generation Warfare, from it's decentralization fetish, to it's focus on infrastructure destruction by stay-behind or infiltrating forces, is new. Similarly, nothing about attempting to influence a nation through social media, infiltrating cultural institutions, creating engaging software (video games especially) that seeks to slowly shift user thought patterns and to pavlov them into certain mindsets is new. These are all fundamentally just basic concepts which have been going on since the cold war, updated and operationalized - as they always have been and always will be - to reflect the modern day's most relevant employment vectors. At its heart, it's nothing more than the same style of PsyOps/Influence Ops that we've been studying for a long long time. The whole "5th Gen Warfare" circlejerk is just people fitting a new interior, a new paint-job, and giving a new name to the old set of wheels. You seem like a smart dude, so I just want you to at least try to think about that.