Yes. Geely also own Lotus and started to produce heavy Lotus branded SUVs.
MG is also Chinese.
Yes — the Wikipedia article that I linked says so as well. But Polestar is headquartered in Sweden, and the cars are designed by Swedes in Sweden. It’s a Swedish brand.
I wouldn't buy a Chinese ICE vehicle (besides maybe a Wuhan-made Honda). What makes you think EVs would be any different?
I too like to burn alive in a vehicle that'll disintegrate at 100kph or above.