Investment, infrastructure, education. Same as China. Same as every other growing country.
What the US and most other western countries do are: Let infrastructure rot, defund education, reroute money to large corporations. This is how you end up with failed state.
Can you give examples of western countries other than the US doing that?
I’ve never seen it, I travel a lot.
I would say that outsourcing and moving manufacturing to other countries is what has killed the US economy - now in a death spiral with interest payments on the debt starting to dominate government spending.