My last point (there are more of them in the comment) is that historically, authoritarian countries have gone bankrupt from other reasons than democratic countr

My last point (there are more of them in the comment) is that historically, authoritarian countries have gone bankrupt from other reasons than democratic countries, but democracies are prone to bankruptcies too. There is nothing about democracy that results in good management of public finances. The original article uses "Antidemocratic" as a subtly negative value judgment. One of my points was that "Democratic" management of finances has often turned sour, too.