[randomopining]

Even if they take Taiwan, won’t they be completely shut out of world markets?

[loeg]

By what mechanism? Most of the world more or less officially recognizes China's claim on Taiwan. I think it would be horrifically sad and disappointing, but more or less ignored, like Hong Kong.

[colinmhayes]

Biden has said he'd go to war to protect Taiwan. https://www.npr.org/2021/10/28/1048513474/biden-us-taiwan-ch...

Probably posturing, but hard to imagine he wouldn't at least impose sanctions.