The work concentrates on the implications of the idealistic and the political realism senses of protecting classical liberalism for entangled political economy through the economics framework of duality. It finds that entangled political economy reveals a failure of the primal problem of duality, but not of the dual one. The modeling survival of the dual problem suggests that the minimization of coercion is what can (and must) be genuinely solved to protect classical liberalism. The solution hinges on institutional design as opposed to allocative choice. And this solution implies that the relationship between liberty and coercion is itself entangled.