Even a lot of years ago, parts suppliers would just fold up - it was cheaper to do that, than continue to play
Race To The Bottom with the car OEMs. That game started, as soon as the vehicle OEMs got rid of their parts divisions.
So, with the gubmints mandating more and more complex systems, into a game that already has low-bid priority, AND providing zero oversight, is it any wonder this happened ? It's all about optics/deniability - govts get to beat their chests about how they are "improving" safety, w/o any skin in the game. (Pun, in this case, semi-intended).
The SAE knew that
properly designed and manufactured airbags had the potential to be lethal to short drivers,
back in the 60's. Yet, they were still mandated, typically w/o that specific issue being addressed, or even communicated.
Given what the auto industry has to balance off, they do pretty well a lot of the time. Personally, I'd prefer a vehicle with less "content", but made with higher quality components - realizing that I'm a minority in today's market. Many sensors or systems on today's vehicles can act up or fail, with only inconvenient consequences. Putting explosive devices in front of people's faces, and beside their heads - pretty irresponsible to mandate that, w/o impartial oversight.
Govt meddling has created some of these problems. In real terms, the govts are more concerned about protecting the auto companies than the drivers who buy the products.
Rgds, D.
(On the equipment end of things, most of what you need is just the braking technology that was available beginning in the late 70's (properly maintained), and a set of climate appropriate modern tires that aren't worn out. Add to that an awake, non-impaired driver with basic driving skills (I know I'm asking a lot

) and probably 80% of accidents wouldn't happen. Replacing the previous with "bling" is a poor substitute, IMO).