To adopt the Republican position on health care requires believing that every other country in the world is wrong, that their policy experts are misguided and their citizens confused.
why it is that no country in the world currently has (or has any plans to adopt) the kind of health care system they're clamoring for. After all, if the ideal health care system is one in which the government plays the least active role and lets the free market work its magic, you would think that some country would have already tried that by now. Such a policy is, after all, much easier to execute and to fund. It's infinitely less complex and requires much less government spending, so you would think that at least some group of lawmakers somewhere would have given the "do nothing" approach a shot. And if the results were as great as the Republicans claim, by now most countries would be following such a system.
the reason we have a patchwork system of health care in this country is precisely because the market doesn't work and the government has been forced to step in and remedy its most glaring failures. Under a free market system, most elderly people are priced out of the market (hence the need for Medicare). Under a free market system, the poor can't afford health care (hence the need for Medicaid). Under a free market system, children of those without insurance have no access to health care (hence the need for S-CHIP). Every health insurance regulation or government program currently on the books was passed in order to address a significant failure of the market.
Other countries have confronted the exact same issues, but instead of trying to solve these problems piecemeal, they have opted for a comprehensive approach. In an effort to discredit the far better approaches taken by other countries, Republicans like to cherry-pick stories of people who were denied treatment or had to wait for treatment under a universal system (while ignoring the very same kinds of stories in our country).