Also, you may want to look up the definition of genocide. The parts of Ukraine that Russia took are almost 90% Russian ethnically.
Somehow you don't hear any calls for Ukraine to return the parts of Poland that were attached to it by Comrade Stalin either. They've been a part of Ukraine for barely longer than the parts of Russia where the fighting is happening.
So yeah, whataboutism.
- In 1940s, USSR totally resettled all Crimean Tatars to Siberia, and only in 90s they got permission to return home. For comparison, imagine US will resettle all people from Florida to Alaska - you will not name this genocide?
And yes, resettling of peoples, was typical for USSR, and Russia was main power in USSR, even when prime ministers was from other parts of Union, so demography policy was pro-Russia. For example, up to 1990s, Russia constantly resettle Russians to Eastern Ukrainian regions, and same way, now Kazakhstan, and other Asian exUSSR counties have large share of ethnically Russian population.