American hegemony is under attack, you're right. But the world is the world is interconnected. By default, we're the world's policeman whether we want it or not. China is next in line to replace us but I don't think the world wants them to call the shots.
“Oh and one more thing....you aren’t going to like what comes after America.” - Leonard Cohen
No, no, no. We are not the world’s policeman. PERIOD.