Lol. Lmao.
In the funniest timeline, the US nationalizes Nvidia to delay China from making chips that work well with LLM's... by a year tops.
Link to original Fortune article the PC Gamer article pulled from, with this juicy relevant quote:
To do that, Raimondo said the Commerce Department’s Bureau of Industry and Security, which manages export controls for the US, needs more funding from Congress.
“I have a $200 million budget. That’s like the cost of a few fighter jets. Come on,” she said. “If we’re serious, let’s go fund this operation like it needs to be funded.”
Even TSMC's own attempts to set up a fabrication plant in the USA is struggling horribly to find enough capable staff.
I don't think TSMC is 20 years ahead of everyone else, but ASML's EUV photolithography machines probably are, and those are under embargo to China too.