Fascism. French beginnings and Italian precursors
The idea of equality of all humans was one of the three fundamental ideas which helped to put an end to the feudalistic type of rule; it was a part of the motto of the French Revolution. And it seems to be no coincidence that it was France that gave birth to the first proto-fascist party a hundred years later. It’s goal was to restore medieval, feudal monarchy in the country and divide the society back into estates. This is impossible to do without canceling the fundamental equality of people declared by the French Revolution. Directly restoring monarchy in itself was impossible in the 20th century. But this wasn’t necessary: neo-feudalism could be created instead. Thus fascism was born.