China does not do altruism. Their car manufacturers are owned and subsidized by the government. They’re made to saturate and destroy markets with cheap goods, driving out the competition. Once there is no competition, they have the market to themselves and can manipulate as they see fit.
Subsidized by the government like…
Tesla?
https://newrepublic.com/article/175397/teslas-cheaper-now-thanks-subsidies-musk-hated
https://qz.com/elon-musks-spacex-and-tesla-get-far-more-government-mon-1850332884
https://www.latimes.com/business/la-fi-hy-musk-subsidies-20150531-story.html
https://www.govtech.com/policy/gov-newsom-says-california-subsidies-powered-teslas-success
Oh, sorry, you must have meant a traditional car manufacturer like Ford.
https://www.cbtnews.com/ford-scores-massive-9-2-billion-loan-for-electric-vehicle-batteries/
https://www.autonews.com/manufacturing/ford-factory-subsidies-are-much-higher-other-deals
Oh, you meant other traditional car manufacturers like GM who took government loans to bail them out from bankruptcy.
https://www.wsj.com/articles/subsidies-supercharge-gms-ev-strategy-11668776501
https://www.mackinac.org/blog/2022/general-motors-should-not-get-soar-subsidies
https://www.politico.com/story/2018/12/19/bush-bails-out-us-automakers-dec-19-2008-1066932
https://www.marketplace.org/2018/11/13/what-did-america-buy-auto-bailout-and-was-it-worth-it/
Or maybe you meant non-American car manufacturers like Volkswagen?
https://www.cleanenergywire.org/news/germany-has-subsidised-total-two-million-electric-cars
https://industryeurope.com/sectors/transportation/germany-to-double-ev-subsidies-as-vw-launches-car/
They’re made to saturate and destroy markets with cheap goods, driving out the competition. Once there is no competition, they have the market to themselves and can manipulate as they see fit.