And here’s why.
The factories, computers, office space, intellectual property and so forth that are now owned by GM would not disappear; they would basically become the property of GM’s creditors. These creditors would sell the assets to the highest bidder. Assuming there is economic value to be created by continuing to operate the company as a business, private equity or strategic investors would buy the assets, shut down some plants, fire some union and exempt workers, and probably use the leverage of bankruptcy court to get a better deal from the unions. The current employees and creditors would be better off if you and I were forced by the federal government to prevent this by paying money to the corporate entity named General Motors, to then be paid to these employees and creditors. Of course, you and I would be worse off in this situation. On balance, if you believe that markets are more efficient allocators of capital than Congress is, the population of the United States would, on the whole, be worse off.
Ditto, of course, for Ford, Chrysler, etc. It’s really the absurd union contracts killing these companies.