It's a globalist industry, and the origin of parts isn't the main issue here, despite the fact that China is an alcoholic's shit stain on the automotive industry (and many other industries) the world over.

I see Teslas as appliances more then cars simply due to their extremely hostile stance on right-to-repair, and the sheer lack of haptic feedback that goes into most of their designs. There are really good reasons why "real" car companies don't use touchscreens to engage gears for example, it's really poor design.

Battery technology also isn't where we need it yet. Do high quality dependable batteries exist? Sure they do, but those surely don't help the bottom-line of manufacturers, and cheap batteries are everywhere, especially out of China.