Like basically every truism, it's a broad generalization and when you pick it apart you find all sorts of cases where the terms are loosely defined or else the truism just doesn't fit. There is at least something to be said here, and this is something of an adaptation of Ibn Khaldun's work on the concept of "asabiyyah" in the Muqaddima. https://en.wikipedia.org/wiki/Ibn_Khaldun#al-Muqaddima_and_t...

From the Wikipedia summary:

"The work is based around Ibn Khaldun's central concept of aṣabiyyah, translated as "group cohesiveness" or "solidarity".[41] This social cohesion arises spontaneously in tribes and other small kinship groups; it can be intensified and enlarged by a religious ideology. Ibn Khaldun's analysis looks at how this cohesion carries groups to power but contains within itself the seeds – psychological, sociological, economic, political – of the group's downfall, to be replaced by a new group, dynasty or empire bound by a stronger (or at least younger and more vigorous) cohesion."