The essay analyzes the reasons of the increase in support of populist parties in Europe, as a consequence of the conversion of social democratic parties to the political and economic principles of neo-liberalism. This ideal homologation between right and left causes an increase in abstention by the population and an increase in consensus for far-right parties. In the author’s opinion, only by building a left-wing people and giving all social and economic categories reasons to recognize themselves in the traditional ideals of the left, will it be possible to defeat populist parties.