Robert Reich provides the correct reason for the GM bailout:
The only practical purpose I can imagine for the bail-out is to slow the decline of GM to create enough time for its workers, suppliers, dealers and communities to adjust to its eventual demise. Yet if this is the goal, surely there are better ways to allocate $60 billion than to buy GM? The funds would be better spent helping the Midwest diversify away from cars, as the auto industry continues to shrink. And eventually, for the reasons stated in Parts I and II of this series, diversify away from manufacturing assembly. Cash could be used to retrain car workers, giving them extended unemployment insurance as they retrain.
But US politicians dare not talk openly about industrial adjustment because the public does not want to hear about it. A strong constituency wants to preserve jobs and communities as they are, regardless of the public cost. Another equally powerful group wants to let markets work their will, regardless of the short-term social costs. Polls show most Americans are against bailing out GM, but if their own jobs were at stake I am sure they would have a different view.
So the Obama administration is, in effect, paying $60 billion to buy off both constituencies. It is telling the first group that jobs and communities dependent on GM will be better preserved because of the bail-out, and the second that taxpayers and creditors will be rewarded by it. But it is not telling anyone the complete truth: GM will disappear, eventually. The bail-out is designed to give the economy time to reduce the social costs of the blow.