DUH!!!!
Uh, no, they didn't fail. Hundreds of little producers of various car parts are still in business as a result. Without GM they wouldn't be.
What your doing, by the way, is called "projection" in psychology. Your looking forward to a worse case scenario where your world is filled with doom and gloom. A kind of living in a cave survivalist hunting big foot out look, you might say.
Now MY world is filled with Unicorns and Rainbows as I happily anticipate these various corporations getting back on their feet, repaying their loans and everyone has excellent health care! Except for those poor illegal aliens, but I'm working on a plan to cover their "worthless" butt too (just thought you'd like to know).