> However, it uses the Russian spelling of Crimean place names on its maps in Russia, rather than the Ukrainian spelling. The vast majority of people in Crimea are Russian speakers (as well as being ethnically Russian). It's been that way since the Russian Empire conquered the peninsula from the Ottomans in 1783. In fact, there's nearly as many Tartar (descendents of Ottomans) speakers in Crimea than Ukrainian. Last…
You forgot to mention that Crimea Tatars, Greeks, and Ukrainians were deported and murdered in Crimea. It's easy to make Crimea speak any language this way. However, in times before mass-education was started and official variant of Russian language was developed, the folk variant of language spoken there was called "molva", which now known as Ukrainian language ("mova").
Crimean Tatars constituted the majority of the population of Crimea before the Russian conquest. They became the minority partly through genocide, and partly because the peninsula was settled by Russian colonists.
Ukrainians, on the other hand, were never indigenous in Crimea. It was not a part of Kievan Rus, so any Ukrainians who lived there, immigrated there after the Russian occupation of it. And there are so few mostly because most immigration to it was orchestrated, and the Imperial government preferred to settle it with Russian rather than Ukrainian colonists.
So in one case, you can talk about genocide of the indigenous population. In the other case, it's preferential treatment of one ethnicity over another for colonization purposes.