China may be investing in rail but that doesn't seem to be incompatible with BEV adoption. As of 2022, 22% of all new car sales in China were electrics.[1] In the US it was only 6% that year[2], and looks to be about 8% for 2023.[3]

[1] https://www.wri.org/insights/countries-adopting-electric-veh...

[2] https://cleantechnica.com/2023/02/25/us-electric-car-sales-i...

[3] https://electrek.co/2023/10/12/ev-sales-7-9-us-market-volvo-...

(Side note: the standard-range Teslas use lithium iron-phosphate batteries which don't contain cobalt.)