It's the old, old 'Manager's Dilemma': Do we 'buy-built' or do we 'roll our own'?
The Chinese were very happy to 'buy-built' from the US. It was win-win. The US semi manufacturers had a very large market to sell to, and the Chinese saved money on the huge costs of setting up their own semiconductor industry.
So now the Chinese have been forced to 'roll their own'. That will take a little time and money, for sure. But ... the US manufacturers have lost the biggest market in the world and will very likely go under, especially when their previous client undercuts them using their newly-built fabs and takes over the markets the US manufacturers used to sell to as well.
You know the US textiles, paper products, home appliance, earth-moving, etc, etc, industries that have disappeared? The US semiconductor industry is going to go the same way.