dblack:
Interestingly, I was just about to start a thread on a highly related topic, to be called "The Three Types of Government." Instead, I'll post my thoughts here.
To begin with, set aside issues of government encroachment on individual rights. ANY type of government, democratic or otherwise, presents a danger of that happening. That's why we have explicit bans on certain kinds of government action in the Bill of Rights and elsewhere in the Constitution. But those protections aren't there because democracy, particularly, is a threat to liberty -- they are there because GOVERNMENT is a potential threat to liberty REGARDLESS of what type of government it is.
One of the earliest such documents is the Magna Carta, which placed limits not on democracy but on a monarchy.
Now, that said: there are only three types of government, monarchy, aristocracy, and democracy. A monarchy is government by one person who holds (and delegates) all governmental power, and incorporates any form of one-person rule whether the ruler calls himself a king, emperor, dictator, Fuhrer, Great Stalin, or whatever.
An aristocracy is government by a privileged class of people. The aristocrats are always wealthy and powerful, and in some antiquated forms they also hold hereditary titles of nobility.
A democracy is government by the people as a whole. It exists in two forms, direct democracy and representative democracy. In theory, the U.S. has the latter sort of democracy, which is also called a "democratic republic."
Government by the one, the few, or the many: those are the only types of government that have ever existed. Monarchy, aristocracy, democracy.
A "republic" is either an aristocracy or a democracy in which government functions are performed by elected representatives. In an aristocratic republic, the representatives are elected, or otherwise selected and controlled, by the aristocratic elite. In a democratic republic, the representatives are elected by the people and serve the people's interests through public accountability in the form of regular elections.
A republic is incompatible with a monarchy. It is not incompatible with either an aristocracy or a democracy, but is always one or the other.
The Roman Republic and the Union of Soviet Socialist Republics were both aristocratic republics (except during periods when they were dictatorships, i.e. monarchies, e.g. under Sulla or under Stalin). The United States at its inception was a blended republic, with both democratic and aristocratic elements. I believe the reason for this is that the Constitution was drafted and the power held at the time by rich, privileged men, but they operated in a context of widespread unrest and demands by the common people for democracy. The House of Representatives was the concession of the aristocrats in this country to popular demands for democracy; the Senate and the presidency were their protection against the encroachments of democracy on their aristocratic privileges.
Since then, popular demand has gradually expanded the democratic elements in our republic at the expense of the aristocratic elements. However, the aristocrats have managed to find an end-run around our ostensible democracy in the form of legalized bribery of elected officials through campaign financing. Because of this, although we have in theory a democracy, we have in practice an aristocracy.
Democracy does not inherently threaten the rights of minorities -- or no more so than any other type of government. Regardless of government type, we need protections of human rights against potential government encroachment, but that's a separate issue entirely.
What democracy DOES inherently threaten are the privileges of the aristocrats. If we don't have a monarchy, then we have something along the aristocracy-democracy spectrum, and the more power the people have, the less power the aristocrats do.
Those who object to democracy are thereby favoring either monarchy or aristocracy. There is no fourth alternative.