You are talking about the full chain of trust. I'm an talking about a single link of that chain, the ability of the operators to know their hardware is not unde

You are talking about the full chain of trust. I'm an talking about a single link of that chain, the ability of the operators to know their hardware is not under the control of some foreign state actor. This is the topic of the 5G wars. It's a necessary but clearly insufficient condition for what you ask.