If the fall of ancient Rome can be likened to the slow dying of an infirm, chronically ill, and jaded old man, then the demise of the modern West is more akin to the irrational suicide of a person in the prime of life, possessing every advantage.
For one thing, Rome was unfamiliar with the destructive pseudo-Marxist concepts--such as Identity Politics, Critical Race Theory, Institutional Racism, Intersectionality, “White Privilege/Male Privilege", Cancel Culture, etc.--that have infected every sphere of intellectual and spiritual life in the modern West. The Roman elite were mired in debauchery, perversion, corruption, and cynicism, yet this pales in comparison to the self-hatred and self-flagellation practiced by the West. Class-based and racial gradations that divided citizens into the “inferior" (white Christian men and Zionist Jews, viewed a priori as exploiters, racists, manipulators, and colonizers--modern ‘Untermenschen’) and the a priori “oppressed" (ethnic and sexual minorities, migrants, and peoples of the Third World--modern ‘Übermenschen’) were unthinkable to the Romans.
Romans in the twilight of the empire continued to respect ancient philosophers and their own culture. It would not have occurred even to a madman in Rome to call Plato, Aristotle, Epictetus, the founders of the Republic, Scipio, Caesar, or Cicero "dead white European males" (DWEM). Fashions, beliefs, and ideas changed, but the memory of their ancestors and admiration for them remained alive in the hearts of the Romans.
They took pride in Rome that conquered, ruled, enacted laws, and built bridges, amphitheaters, and roads, and they did not torment themselves with pangs of conscience. They were also aware of the evil nature of man and rightly considered that Rome--for all its vices--represented the highest manifestation of the human spirit when compared to the barbarians.