Keynes’ laid out a Capitalist Utopia but its end result looked suspiciously similar to socialism, with cooperation being the natural result of reaching the point where everybody has more or less equally upped their standards through acquisition of wealth and there’s no more “up” to go in.
The problem with pursuit of this dream is that today’s troubles are seen as “temporary setbacks”. But it’s only a temporary setback if you’re not the one going through it. In Keynes’ time, the Great Depression was the “temporary setback” and indeed it was _historically_.
But while it was going on? Many people suffered and people died during the two word handwaved “temporary setback”.
“Yes, sorry you have to die and yes current capitalist monopolies controlling everything like mini-governments makes everything unaffordable but don’t worry. Your generic line will die off due to lack of funds and the ones of us with capital will do just fine, so the human race will do great in the end. Sorry it’ll be without you and yours.”