Character and Democracy

According to Kant, the evaluation of a speculative proposition concerns not whether it is 'true' or 'false', but its fruitfulness when adopted as a heuristic hypothesis.  Thus, the evaluation of Schopenhauer's thesis, that Character is innate and fixed, must take into consideration its serving as the basis of anti-egalitarian, e. g. anti-Democracy, political doctrines, i. e. because it entails a populace constituted by immutably different members, differences that are easily construed as hierarchical, e. g. by Plato, in The Republic.  So, more precisely, the evaluation must include an examination of how 'beneficial' actualizations of such doctrines have been, an examination that likely entails a comparison with the alternatives, e. g. an examination of how 'beneficial' Democracies have been.  Even if Schopenhauer does not explicitly recognize the full scope of his thesis, someone familiar with Plato should not be surprised that Character is systematically related to political organization.