All of US manufacturing went to China because labor was cheaper.
You can't build things when you don't have a robust manufacturing base
The US, Australia and probably most developed countries have declining productivity in construction.
(1985) https://www.nber.org/system/files/working_papers/w1555/w1555...
(2025) https://www.nber.org/digest/202502/stagnation-us-constructio...
That shouldn't be tied to China. Indeed arguably China might help with cheaper materials potentially.
All of US manufacturing went to China because labor was cheaper.
You can't build things when you don't have a robust manufacturing base