This opinion is ridiculous as “the big 3” doesn’t even exist anymore and hasn’t for over a decade. Chrysler/Dodge/Jeep is owned by a Scandanavian company.
Also this isn’t written to protect the few remaining American companies, it’s to protect the entire auto industry in the US including Kia/Hyundai, VW, Toyota, Honda, Mercedes, BMW, Subaru, etc.
China selling vehicles with massive subsidies that allow them to undercut everyone else in the market isn’t good for anybody but China because as soon as they put their competitors out of business, they will jack the price of their cars up as high as they want.
This is the same reason why when Walmart comes to a new town, all the similar local businesses shut down because it’s impossible to compete with their deep pockets, but now you’re advocating for it on a national scale which will potentially cost hundreds of thousands of domestic manufacturing jobs.