>The whole idea of supressing stupidity in a democracy leads to some sort of elitist society.

there's nothing wrong with this. Stable democracies tend to be republican and elitist. One of the reasons why the US has been, until recently, an exceptionally stable country was because decision making was largely insulated from the whims of the public. Democracy properly understood is best used as a tool for legitimacy and as a check against the worst abuses of power, not actually as a tool for decision making.

Having the inmates run the asylum is generally a bad idea, we've known this since Plato.