Why not conservatism/small government?

Clearly. Clearly the expanse of government is not doing this economy any good. Obama plans to expand government dramatically which also equates to more government spending. More government spending must be covered by the taxpayer. I sincerely believe in limited government. I think that smaller government benefits all. Less regulation, less taxation and less stress in general. Smaller government requires less money to run and therefore the savings are passed on to the tax payer. Please, will someone explain to me why and how people can possibly think that big government and expansion of government will be good for us? This is a sincere question, because I cannot logically, intellectually think of a way this can work.