The real question there is "would the world go to war with China to protect what is left of Taiwan's freedom?" You only have to look at diplomatic attitudes of

The real question there is "would the world go to war with China to protect what is left of Taiwan's freedom?" You only have to look at diplomatic attitudes of the past decades to know that the answer is "of course not". It would certainly cause massive upheaval if China tightened its grip on Taiwan, diplomatic and economic sanctions, a massive shift in semiconductor production, a change in status for other semiconductor producing countries and a delay in the forward march of computing technology. But not World War 3.