Does the US make any components anymore?
Are we already a vassal state of China?
The whole picture changes if BTC goes to 10 trillion. That kind of money topples governments or the government topples the miners within it borders.
TSMC (Bitmain's chip supplier) is building a semiconductor plant in Arizona. They will be producing 5nm chips 4 years out from now so I'm not sure how relevant it is to BTC, but it could be a sign of things to come.
https://techcrunch.com/2020/05/14/tsmc-to-build-a-12-billion-advanced-semiconductor-plant-in-arizona-with-u-s-government-support/Supposedly miners (and ASIC manufacturers) are slowly but surely heading to North America:
Samson Mow, the Chief Strategy Officer of Blockstream, agreed, adding that “[w]e’re already seeing a large segment of Bitcoin mining move to North America.” These include Blockstream’s operations, a 300 MW joint-operation between its Quebec and Georgia facilities. Munich-based Data AG (formerly, Northern Bitcoin AG) has established its own 300MW facility in Rockdale, Texas. With 300 MW total capacity, these are some of the largest Bitcoin mining facilities in the world.
Other examples of North America’s burgeoning mining sector are not too hard to find. One firm, Upstream Data, is selling mining rigs to oil drillers to help them make better use of flare or vented gas. Another company, VBit, is establishing a 200 MW facility in Alberta, Canada.
Mow expects this wealth to run over into the ASIC’s chip manufacturing business, as well, saying “it’s inevitable” that “major ASIC companies setup manufacturing facilities in North America in the coming years.”
https://decrypt.co/27777/bitcoin-halving-could-bring-way-more-mining-back-to-north-america