It is indeed one great famous weakness of democratic systems, the fact that they typically end up incubating anti-democratic systems that replace them. The ones

It is indeed one great famous weakness of democratic systems, the fact that they typically end up incubating anti-democratic systems that replace them. The ones who do not (e.g. UK Parliament) usually manage to survive by negating their democratic nature when it is expedient to do so (i.e. limiting representation with very draconian measures, so that "revolutionaries" are kept out of power).