Re: This is a Real national security problem. Think hard, Brits!
"You seem to be overestimating how much the rest of the world would rather be dominated by the US instead of China."
Look at the companies that will likely benefit from 5G on the infrastructure side - Ericsson/Lucent/Huawei/ZTE and Samsung in a distant 5th.
Yes, US companies that provide supporting infrastructure such as Cisco and Juniper benefit, but its as much European and Asian OECD countries as the US. The question is whether the western world (more accurately, OECD countries) are happy with the current arrangements or would prefer China to be setting the agenda.