All over the developed world, nations are coming to terms with the fact that the social-democratic welfare state is turning out to be untenable. The reason is partly institutional: The administrative state is dismally inefficient and unresponsive, and therefore ill-suited to our age of endless choice and variety. The reason is also partly cultural and moral: The attempt to rescue the citizen from the burdens of responsibility has undermined the family, self-reliance, and self-government. But, in practice, it is above all fiscal: The welfare state has turned out to be unaffordable, dependent as it is upon dubious economics and the demographic model of a bygone era.
From an article by Yuval Levin at National Affairs, entitled Beyond the Welfare State.