Russia wants nothing of the sort. If you're not some sad troll but actually believe Russia has "fantasies of removing Ukrainian culture" etc, you are so deluded it's disgusting. It was Ukraine that has been attempting to ethnically cleanse people of Russian heritage that is mostly what kicked this whole conflict off. Russia has been making sure civilians have a corridor to safety while the Ukrainians have been openly talking about purging the population of Crimea if it were able to take it from Russia (which they can't, not even in their wildest "fantasies.")
Russia has wanted to negotiate reasonable peace terms since the beginning of the war, but it has been repeatedly scuttled by NATO/Ukraine, most famously when Boris Johnson intervened to make sure peace did not happen.
All of that is the reality of the situation, but the propagandists and those who ate up all their lies like to project the crimes and failures of their own masters onto their enemy, and we end up with the mirror world that this sorry know-nothing fool believes in.
Then you should support the people of the Donbas who have been fighting for their lives since Ukraine started trying to ethnically cleanse them back in 2014.