The question of whether or not “democracy” works is always being studied, by proponents of freedom as well as by proponents of authoritarianism. The founding fathers of the sovereign American experiment were far more intelligent than some critics today give them credit for – they knew full well that democracy does NOT work, not without some rules which make certain rights inalienable. This is why they modeled the original American system as a Republic, not a democracy.
Today, there are many people (primarily in academia) that seem to think they are gifted with more insight into our political and social systems than the founders of old, and are constantly trying to sell a myriad of concepts for improving our existing structure. Some of these people are well meaning, and some of them are not, but their ideas for “fixing” the problems of our political and social systems almost universally ignore or overlook the root causes of those problems. They try to cure the symptoms rather than the disease.