Whew lots of hot takes in these comments.

In my opinion, the core concept is simple: China is a big market that's getting wealthier and BYD makes cheap and innovative cars.

Owning a vehicle is going from a luxury for wealthy people in China to a more every-day thing, driving huge volumes. Meanwhile the rest of the world (US excluded for now) is trying to electrify personal transportation, and China is meeting that demand better than any other country.