Of course they do! And it would be totally fine to make an offer. But to purchase an entire strategic sector from a country would warrant some sort of government intervention, no? TSMC getting fully bought out and moved out of Taiwan, as comments suggest, would not be possible without the government's approval, and why would a government approve that if it had its own interest at heart?

It's why I was giving the example of EU or China or whatever offering up to buy the entire US military industrial complex. It would be impossible, and not only due to lack of funds.