It's apparent you don't understand business.
When starting or restarting a business capital is necessary. In the GM case, it was government money. In some cases it's from private investors. Money is money. It doesn't matter where it originates.
Then the business starts into the production mode or restarts. After taking product to market, they hopefully make a profit. GM made huge profits in 2010that they wouldn't have made with the government capital.
Once they are strong footing they can make a public offering. This allows those who invested to cash out their initial investment.
That's what is happening with GM.
Johnny, you should put your partisan hat away and take a basic buinsess course. It might help your posts.