The US really doesn't understand that there is simply no competing with these batteries. To try to block the import of them is only going to set our own local industry back in their ability to compete in the global economy. And ironically the BMS systems for CATL are still using American semiconductors, so the US still gets some revenue from their massive expansion.
The most viable competitors to CATL are all in China too. I'd be somewhat supportive of a CATL specific ban due to their notoriously terrible employee working conditions and crazy NDAs/non-competes, but to ban all Chinese batteries in the US would be a huge mistake.
Its simple. Now that China is in the lead, do what China did to the west. If you want access to the markets you have to build a plant in the US and share IP. That's what the EU just proposed to China's EV manufacturers.
It's good for everyone. Consumers get cheap batteries, China gets Western Markets, and Western companies get Chinese technology to drive the next wave of competition.
There just needs to be a cemented in place ban that can't be undone for at least 20 years.
There's nothing being made in the US for batteries because you can't beat China in price and companies aren't going to put six billion dollars and 5 tears of construction I to making a battery factory if they don't believe the ban would last long enough for it to be worth it.