Again, I don’t know why you’re so fixated on the few American companies on the market when this is about the entire industry in the US, of which American cars make up maybe 25%. This protects that 25% plus the other 75% of non-American companies.
You’ll have to point out where I made the argument that there are equivalent new American EVs selling for the same price as these highly subsidized Chinese EVs. I don’t recall ever saying that since this is the whole crux of the argument. If everyone were able to sell their cars as cheap as these highly subsidized vehicles, the US and EU wouldn’t even need to impose tariffs nor would China need to subsidize their offerings. This is a complete strawman.
If you care about the environment and want a cheap EV go buy a used Nissan Leaf for $7k. It has already been built and won’t generate new emissions in order for you to purchase it.