With how critical semiconductors are, I'm really surprised having nationally owned fabs, even a few nodes behind, isn't a priority for big governments.
For China it is. The US seems to have been under the impression for the last couple decades that geopolitics don’t exist anymore.
On that note, if TSMC’s technical supremacy isn’t a core part of Taiwan’s national security strategy I’d be shocked - whatever else the US may think about Taiwan & China, the fact that our entire electronic infrastructure relies on TSMC in some form or fashion ensures we have a deep and serious ongoing commitment to their independence from our chief geopolitical rival.