Western countries simply don’t have the supply chain required to compete with China. China is often by far the best supplier for a lot of components and the sole supplier able to provide some raw materials in large quantities.
Honestly, we are not far from reaching a point where using the old Chinese strategy might be our best bet: mandatory JVs with local companies if the Chinese companies want to access our markets.
GM alone has spent most of its history waffling between whether it wants to be a large bank itself or not. (The "GMAC" division has threads back to 1911, was spun out in the '00s as "Ally Bank", has been mostly repurchased with others to reform a larger "GM Financial" starting in the 2010s.)
The other part of it is that marginal costs are weird in the modern software-defined world. Motorized windows are cheaper today than the plastics and mechanical parts of roll up windows. Similar for the mechanics of manual mirrors. An electric motor tuned precisely for that mirror is fewer parts than a manual mirror. A camera system is sometimes even cheaper than mirrors today, which is wild.
It is. But the reality is that those companies are complacent fossils who have lost all their vigor, and only threat of extinction would force them to innovate. Which they’re not under because legislators agree with you (in no small part thanks to their lobbyists).
Like many things, we’ll realize the extent of how badly we messed up when it’s way too late.