It’s banning it because of national security concerns and has nothing to do with capitalism. Honestly though this administration doesn’t seem to take national security very seriously so this will probably fall to the wayside and be enforced with the same vigor as our border security laws - so yeah nothing for them to worry about.
Somehow, it becomes a security threat when the product is superior than local offerings
The Biden admin has also been looking to halt BYD sales in the US, citing security threats [0]. BYD’s cars are often cheaper than Teslas and very well reviewed