The funny thing is that people think China would disagree with that map, yet that map is exactly what China claims. In fact, Taiwan claims far more than that map, so the only source of disagreement technically would be on the naming. However, China, or Sino wouldn't actually care. You think China is the name they gave themselves or even use or say that term? That was a Western nomenclature put upon them in the first place.
China's largest gas company is called sinopec, not chinapec. So that weird name change is meaningless to them. If that made the west happy so they could take over Taiwan, they'd do it in a heartbeat.
This is true, China doesn't care. I'm actually confused about the narrative around China wanting to take TSMC. Even the most cursory glace at the situation should make it obvious this isn't one of China's goals. This is because these EUV machines don't work on magic. They work on knowledge and spare parts. Even in the unlikely scenario that China somehow invades and these machines aren't destroyed by either China or the retreating Taiwanese, they aren't going to be able to operate them and more importantly get spare parts to keep them running. They'd at best be used to disassemble and review.
All of this ignores the fact that China is already at 5nm using their own equipment anyway. For the extra 2nm of difference between TSMC's 3nm to SMIC's 5nm isn't large enough to rationalize anything close to what they're talking about. It'd be cheaper to just keep subsidizing the Chinese industry rather than invading.
All of this is to say, that China may or may not invade, but TSMC isn't on the list of reasons. If anything, it's on the opposite end. China has a LOT of motivation to bomb TSMC to prevent the west from getting chips as if TSMC is gone, then suddenly Chinese 5nm are pretty much the most advanced chips in the world (besides Samsung). Thus, the real conclusion is we need to invest in Samsung, which surprisingly isn't happening for whatever reason is beyond me.