Guess where our network gear vendors are? (Currently using mostly Arista, but also some Juniper core routers, used to have Cisco gear too).
Guess where our OS is being sold from? (Even when use Linux, much of it is RHEL).
We use VMWare products (yep, US), and Openshift (RHEL, also US).
We use F5 and A10 load balancers. Both US.
There's sooo much off-the-shelf hardware, software and firmware from the US; replacing one of them would be a big to huge integration project; replacing them all would be an endless nightmare, especially if the only alternative is from China. If there even is a practical alternative.
Not unless its heavily modified to scale past 10k nodes sensibly. its security/secrets model also needs a boatload of work before you can think about hosting untrusted parties on your kit.