The biggest mistake Republicans can make at this point is to fall for the line that big insurance will join in the effort to repeal Obamacare.
ObamaCare is manna from heaven as far as big insurance is concerned. The program centralizes regulation of insurance is a group of captured federal regulatory agencies (opposed to dispersed regulatory authority among the states). Above all, it does the incredible. It makes buying insurance mandatory ... which relieves insurance from competition of self-funded care (which erodes profits).
From the perspective of big insurance, the only downside to Obamacare is that it's administered by people hostile to big profits. The ideal world for big insurance would be for neocons to take over the administration of insurance and for idiot Republicans to allow big insurance to sell products across state lines ... which would lead to even greater consolidation of the industry.
Those wishing to repeal Obamacare must realize that big insurance is the enemy of reform.
To preserve our freedoms, the repeal of Obamacare must focus on strengthening local control and providing alternatives to insurance.
Strengthening local control means continuing the tradition that insurance can't sell across state borders. It also means created mechanisms for self-funded care that can compete against insurance.