From Marginal Revolution
Because European government works better, Europeans demand more of it and get more of it. American liberals look at Europe and see (sometimes) better results per dollar spent. They then conclude that America should be more like Europe, whereas in reality America would end up spending more to get more bad American government.
It’s a very nice argument against moving towards European style nationalized health care, to wit, we would not get the same results as they do. Instead we would probably just magnify existing problems.