They are going to have a much harder time weaning off American cloud infrastructure and on to something purely domestic.
The problem is when US decides to ban sales of compute hardware to EU (like they do to China). Then it will be clear who's really in power.
If China closed the door overnight to the US, it would also be clear who's really in power.
The US simply does not have the capacity to replicate the manufacturing domestically.
Even if it were possible, "100% Made in the US" would end up costing at least 20–30% more.
And the US does not have a plan B. Sure there might be India .... one day....years away.