Further, once Google depends on its China operations for revenue, what's to stop the Chinese state from leaning on them further? With enough leverage, they won't scruple at affecting what Google does in the west as well.
Any company that adds a customer that becomes the source of ~20% of the company's revenue implicitly gives the customer power over the company, the bigger share of revenue the more power. Google would be insane to give this much power over itself to China, ignoring that developing this technology sets the precedent for oppressive regimes to demand flipping on the "more speech suppression" switch.
