What makes you believe Huawei is the only company that will ever be able to build 6G hardware for the entire remaining lifetime of the universe?

Huawei and other Chinese companies laid huge patent minefields around pretty much every modern high-speed radio technology.

If you ever worked in 5G/6G/Wifi/etc. standardization you will quickly see one thing: they know their job.

So even if you rip out all Chinese hardware - you will still have to pay money to them if you replace it with local stuff from Nokia/Ericson/etc.

Scale. Huawei has 1.4 billion customers just in China. They have double this around the world. The US and European markets have become small for the scale of next generations telecom.