China lead us? When did they start developing their own technology?
BYD in China is one of the top leaders in electric vehicle technology, especially commercial vehicles. Even has plans to build a factory in the US to handle the demand. If you've ever been to China you'll see millions of mopeds and mini bikes running around, most are electric.
Don't underestimate China.
Also they don't have to develop their own, they can always buy it from Korea and Japan. Tesla's "technology" is the battery from Panasonic, and their plan is actually to make money from the batteries and give away the car at cost (giga factory and open source the patents).
Think in the geopolitical term, China would have no way to control their oil supply if the US control the ocean and the Middle East, but at least they can generate their own electricity if they are diversified enough (coal, nuke, solar, hydro, wind together).