China won't need to destroy them. Musk is fully subscribed to China's authoritarian vision. He is invested in it. It suits him.
Musk says Americans are complacent and entitled, especially Californians and New Yorkers. In contrast, Musk says China rocks:
https://www.cnbc.com/2020/07/31/tesla-ceo-elon-musk-china-ro...
Musk implausibly called America's covid measures "fascist":
https://www.theverge.com/2020/4/29/21242102/elon-musk-corona...
And yet he had Tesla praise China's covid measures and say that Tesla "always strived to fulfil its epidemic prevention responsibilities and that it believed Shanghai's COVID-19 measures helped lay the foundation for the city's future development":
https://www.reuters.com/business/autos-transportation/tesla-...
China profits Musk too much for him to oppose it. China will say "jump" and Musk will ask, "How high?"