But... It is being diversified. Europe, the US, Japan et al. are all scrambling to give subsidies and tax breaks to the means of TSMC, Samsung, and Intel for mo

But... It is being diversified. Europe, the US, Japan et al. are all scrambling to give subsidies and tax breaks to the means of TSMC, Samsung, and Intel for more local factories. The thing is, chip fabrication is hard. Really hard. Among the hardest thing human beings have ever achieved and only getting harder on the leading edge nodes. There are very few people with the expertise, very few suppliers of the tools, huge costs, and huge risk if something doesn't go well. Intel made some wrong technical bets on their 10nm node and they are still catching up years later. But that's at the leading edge. The real meat and potatoes chips that aren't being used for high performance computing or slightly slimmer iPhones are made all over the place by lots of different companies.