Only because they know Chinese EV will take 100% of the market if they do not come up with cheaper EV.
Chinese EVs are dumping because China's economy is collapsing, forcing them to dump prices because there's not enough Chinese demand.
China is now exporting all of their excess inventory to Europe and beginning to make plans to export all this inventory to the USA. And USA is rejecting it.
China has overbuilt their EV market, and continues to over-invest and builld too many EVs. USA is already pissed off at this turn of events, and European politics are beginning to grow more protective as they are also seeing this ridiculous amount of inventories come over to their countries.
China bet too much on exports and has begun to piss off everyone else.