Perhaps other civilizations have destroyed themselves, but it is certain that the Western world has destroyed itself.  Other civilizations might have underestimated a threat, or made a military blunder, or like Cartage antagonized a more powerful foe.  But the Western world is the first in history that, despite its dominant economic and military power, dismantled itself.

Everywhere one looks in the Western world, governments, intellectual and professional elites, and media have picked apart Western Civilization with relentless demonization beginning in the 1960s. (And yes there are older roots. The "march through the institutions" Frankfort School moved to Columbia University in the 1930s.) White liberals thought that this was the way to reform society, but they were delusional.  It is the way to deconstruct society, and that is what they have achieved.