Your "bud" asserting a future Russian cultural essence in Voldemar's conversion spouts the same teleological nonsense as Putin's July 2021 Razzhist ethno nationalist propaganda screed, that the first converts to Christianity in the area were destined to be Russian. Again, those dwelling in the forest bog that Moscow a quarter millennium later were as Russian as the Ostrogoths were German or the Visigoths Spanish and Portuguese and the 1st century Celts British.
The cure is in Tim Snyder's Yale course, The Making of Modern Ukraine. History is contingent and highly random, not the mythologized nationalist idiocy you credulously parrot.