I think America's natural resources are its superpower personally. Immigration has historically been important in setting up systems for extracting these resources however I think whether its good at a given time needs to be justified every time.
When you combine that superpower with our insane natural resources; our insane oceanic coverage on the west and east borders; and our cultural and governmental bias toward personal freedom; there's simply no alternate reality or predictable-term future where America isn't a global leader.
Performative interest in diversity is condescending and othering. Well, performative interest period can be condescending and othering, regardless of the topic.
If the SS taxes from my pay had each month been been put in an account that invested in 1-year T-bills at whatever the current rate was at the start of that month, and when T-bills matured they were rolled over into new T-bills, the amount in that account now would be enough to cover what my monthly benefit would be if I retired now for the rest of the expected lifespan of a US person of my age and sex.
I also did a similar calculation with the Medicare taxes from my pay. That account would have enough that if put toward monthly premiums on a decent insurance plan from the ACA marketplace in my state the amount I'd have to contribute monthly is close to the amount of the current Medicare premium.