It's true that in the last 10 years that vision feels like it has crumbled. And the inevitableness of competition is coming back. International law and human rights are dissolving - rule based on power. This works well for anyone while it works for them - except for our souls, and longer term... It's hubristic and eventually empires fall. Europe has already experienced this, and remembers it.
Whether these empires will fall to global economic collapse from lack of co-operation, or environmental destruction from lack of charging for externalities, or from global war, or simply from out of control AI, remains to be seen.
But never question, it is possible to avoid all those. But we have to try to, not just cheaply go "competition good", because of the short term thrill of the win. Competition is good, and so is cooperation.