What is characteristic, both the Poles, and the Germans, and the Japanese, and billions of Chinese are calm about the fact that their country is not called by others as they themselves (and even the majority of Ukrainians have reconciled with them)

Why only them? Russia in some languages is called Rasya (Hello, the initiators of the Shatch), Rashay, Venema, Krievia, Elouosi and so on. Nothing, not a jerk.