The "liberal" reading of that quote requires a faulty reading of history. Look at the full quote. It's quite clear that Schopenhauer is referring to the civic nationalism that was prevalent in his time, not to ethnic and blood ties. This type of critique may be applied to boomer-style conservatives who ardently believe in American exceptionalism, worship the increasingly ineffectual liberal Constitution and promote petty jingoism abroad for unclear reasons. The argument is absolutely inapplicable to this girl though. If I have my facts correctly, d'Escufon was a member of Generation Identity, which was literally banned in France. This type of ethnonationalism is completely antithetical to the system currently in place in the West and an obvious distinction must be drawn between this ethnonationalism on the one hand and the object of Schopenhauer's criticism, which is essentially just jingoistic bootlicking.