I appreciate the time the OP took to make the thread, so I'm opting for the non-nuclear approachThought you knew the answer to that one. They didn’t spend enormous resources to vilify everything Soviet, socialist, communist, for you to come here and try to be smart ass by separating socialism and USSR. These, who’s livelihood depends on it, will keep making sure there is no entrance into the conversation about any form of social equality by pointing fingers at the large red monster. And other monsters of similar nature.

We're discussing, effectively, competing systems here. So a relative advantage is directly portrayed (and has been, throughout the thread) as a categorical advantage that defines the result of the competition.I would enjoy a clarification on your second paragraph.
I don't think we agree on this, no. It only seems arguable if we ignore the people outside the wall entirely, which I find difficult (because that's the entire point of the wall in the US context). And even then, walling your population off from the rest of the world has allegories a thousand times over in fiction. It doesn't tend to present it as a good thing. We even point to real-world localised examples of this happening as bad things with regularity (cults, extremist communes, etc). It's only "good" for as long as you can sell the impression that people are better off by themselves with no outside aid, influence, relations, etc.But we do agree in the abstract that a system good to those on the inside is better than to none at all, right? And in the abstract version of the wall trope, America’s wall beats Berlin’s in righteousness?
It's difficult to understand that, over time, a country with an isolationist wall is good for the people inside it, when every model at a smaller scale ends up with a Bad Ending. My only guess here is because we haven't given the at-scale model (i.e. reality) enough time yet for the collapse to realised.