At some point , looking at all the damage, it becomes hard to dismiss Trump as merely unintelligent and incapable. The other possibility is that the destruction deliberate, and the goal to end US hegemony. Would things proceed any differently if it were?
Much of the self-destruction flowed from the pages of Project 2025. You can't just blame Trump: you have to include the Heritage Foundation and the entire Republican party.
This is not a problem that goes away when Trump ultimately leaves office.
He's an agent of chaos. His decision-making process is rashly emotional and based on narcissistic needs.