I suspect what will happen is that cheap Chinese imports will come into the USA but only for select manufacturers who benefit the current administration. So no cheap byd’s but possibly cheap Tesla’s.
What it means that if you count what percentage of car parts are made in America, Tesla has higher percentage that other brands, even those you might consider "more" American, like GM or Ford. All Teslas sold in America are assembled in America (California or Texas). Ford Mustang, for example, is assembled in Mexico.
As far as I know Tesla never sold Chinese built cars in US. They used Chinese manufacturing (CATL) and Korean batteries in some model, but also manufactured batteries in US (Nevada, with Panasonic) and are expanding battery production in US with 4680 (used in Cybertruck).
Cheaper Teslas are coming to US but they'll be manufactured in US (Texas). Tesla told us that they'll start making a cheaper model sometime in 2025.