I'm not sure they'll try to leave the sinking ship until they're already swimming, y'know? People who learned that resistance is futile over the course of US hegemony are not going to easily unlearn it. I think it's happening among young people because they don't have as many memories of the US being unstoppable. In fact, for people born after 9/11, the US has rarely won.
But for people who remember the US winning the Cold War, it's going to take a lot more to make them unlearn their cynicism.