Why are you limiting US strategic interests to protectionism of private companies? It is in the American Interest (both private and public spheres) if "Made in China 2025" were to fail: Huawei is a just one front in that war. In this light, minimizing Huawei's market access with (even in the absence of domestic competitors) makes strategic sense: less experience in the market, less revenue, less R&D). Technological expertise tends to bleed into military applications
"They have assembled a small army of suppliers to build a virtualized network built on x86 hardware. ... Rakuten has no dedicated hardware except in its antennas, ensuring the upgrade to 5G will be straightforward. ... Chief Architecture Officer Tareq Amin said the network has "virtualized everything," including radio access, core, transport, IP, billing and operational support systems."
I'm not sure who this army of suppliers is though.
The hardware is the easier part to account for, it’s both physical and a constant.
Despite the current president's personal crusades, this is not about US protectionism. Companies in the US wouldn't benefit from a ban on Huawei equipment anyway, it would be Finland and Sweden who do.
Supply chain trust has always been a primary concern of any kind of critical resource/infrastructure defensive strategy. Every time a country relies on another for a critical ongoing need, it introduces an inherent power imbalance that the supplying country can use as a leverage. This kind of stuff is centuries-old geopolitical strategy, and it's still in the news every day when we're talking about energy, food, minerals, etc. (e.g. Russian pipelines) Why is communications infrastructure any different? It's not.