For the record the auto companies are asking for a loan, not a free bailout.
If the American auto industry fails the entire economy will likely collapse as a result of the problems it would cause - it isn't just one or two towns in Michigan that would be impacted - there are companies all over the US that are directly and indirectly tied to the auto industry (parts, insurance, aftermarket accessories, loan underwriters are banks and credit unions, repair shops, etc.) Millions of people will lose jobs all over the US, not just in Michigan.