Simple. Your question is joyously simple, so is my answer and solution. Keynesian economics destroys prosperity while commanding govt growth to ease that destruction. The answer is Austrian economics. Elevating that answer simply requires an army of Austrians from Ron to Rand, Peter, Tom, Cafe Hayek, Mises.org, Williams, Rogers and 100k smaller voices like mine to join in unison as soon as the next recession hits. Only then will coalitions form, legislation pass and the country will change direction.
10-15 million more voters need to believe in non-interventionism (liberty) at home and abroad to change America. Minds changed on Syria. Minds changing on privacy. "Printing money" is part of the dialogue. Win minds through focus, strategy.