Just let Obamacare die on its own. Let Obama feel the burn when every citizen of the United States sees his folly collapse on itself. Give the "sky is falling" naysayers exactly what they demand, and let them explain why they supported a tax that is bankrupting millions of Americans after Obamacare collapses.
Republicans don't need to do anything. Democrats gave us Obamacare. Let karma pay them 100 percent for their folly.