The truth is out there
While you and I disagree on a number of issues, your comment is painfully true.
Since the majority of Americans now alive have never served, nor seen the realities of war unfiltered through the lens of a TV camera, they have no inkling of what it's really like.
The same could be said of what life is like in any other country, esp those off the Popular Tour Circuit, or hidden behind those nice shiny facades most third world tourist destinations put in front of abject poverty and misery.
For the time he was created, the character of Cpt America was well fitted. But things change, societies change, people change, the world changes.
While the character may be revived in the future, RIP, for now.