There are many good arguments against democracy. The most standard of these arguments is primarily an ethical one: that it is unjust for a majority to be able to vote away the rights of a minority. For if democracy is defined in terms of majoritarianism, it must be dismissed as being inherently incompatible with a universal application of rights to all human beings, since it implies that any larger amount of people can legitimately force their will on any smaller amount of people. This makes democracy nothing but might makes right, cloaked in egalitarian rhetoric. The ethically and logically consistent position would be that if it is wrong for an individual to do X (such as murder), then it is wrong for a group to do X. However, I intend to take a bit of a different approach to arguing against democracy here.
The ideal of political democracy is that of a government controlled by the people as a whole. The idea is that by expanding access to the governmental apparatus to everyone, wether that be through voting or through eligibility for holding political office, we will get rid of exploitation of men by men. This is supposed get rid of the special privileges in society, converting everyone into more or less a state of “equality under the law”. But this idea is ridiculous. The government is not actually directly controlled by the people. Ownership by the government, in practice, amounts to ownership by an oligarchy, for the people do not in fact directly control the government. The people who actually constitute our government, in practise, are the politicians, bureaucrats, policemen and soldiers. Another related class of people are a small band of private interests who ally with the government for special privileges in exchange for political support. Combined, those are the real, albeit unjust, owners of “public property”, which is stolen from “the people” in reality (including workers and the poor in general).