Please read the Price of Peace.
It is the latter that is useful and brings peace. People won't get too mad if their neighbors have more stuff as long as their stuff allows them a pretty good quality of life. But problems arise when you cannot buy the better stuff to improve your life and instead the focus is redirected to stupid items.
This is what the article is about, in my opinion. In the end, filling your house with gadgets and gizmos of dubious usefulness/quality does not improve your life substantially. But this is what much of the population has been relegated to, and it has a soul-crushing effect.
But still, are you saying that I'd better consume things I actually don't need because that's the only way to avoid war ? I'm not saying that you should stop buying things. We need objects in our life.
But are Apple Watches, Airpods or VR headsets or foldable phones protecting us from war ? I hope not because that sounds depressing.
(Asking genuine qestion, I'm not doing virtue signaling here, I do own a VR headset, a pair of airpods and an Apple Watch and none of those objects are making me happy actually)
But then what emerged is that the largest consumer engines of production and consumptions could control the global trade and resources in a way that would suppress warfare globally by creating an economic MAD game alongside the nuclear one.
People don’t understand how much violence this likely saved us. However it is of course not without consequences. I'm just saying so far the side effects have FAR FAR outweighed the sickness (world war)