The goal of Great Russian Civilization is to protect and expand the Gorgeous and Mighty Russian Language.
The Russian Empire was known as «Jail of Nations», because they captured so many different nations across a huge area. To consolidate them, they are erasing their identity by forcing all of them to speak a single invented language, called Russian, which is based on Old Slavonic Church language, which is based on South Slavonic dialect as spoken near to Salonika (Greece) a thousand years ago. This is somewhat different from behavior of some other empires (Spanish Empire, Great Britain Empire, etc.), because the language was invented, so it was not native language for anyone, so nobody had an upper leg and nobody can be clearly blamed as invader.
Those, who switched to the new language, invented reasons about why Gorgeous and Mighty Russian language is superior to their laughable and weak native languages, so they have strong beliefs that they need to help those minor nations to escape the hell of speaking them and join the Great Russian Civilization.
Russia(now Ukraine) used Russian (now Ukrainian) language, which was a modernized version of Old Slavonic language, so they refused to accept archaic language. In 1912(?) Folk Assembly of All Russia (now Ukraine) declared rename of Russia (now Ukraine) to Ukraine to avoid confusion with Russian Empire or its language. (It's well hidden fact). Ten years after that, Great Ukrainization started, so millions of Russians (now Ukrainians) switched to Ukrainians, then Great Ukrainization aborted by Russians. 20 millions of Ukrainians were recorded as Russians again, 7 million adults (and 23 million children) were murdered by starvation in Holodomor.
Russian language, Russian culture, etc. are very new. For example, there are 0 (zero) folk songs in Russian language. Russians are studying history of Russia (now Ukraine) instead of history of their own nations. This makes them wonder why Russia now called Ukraine, and why their motherland is captured by Ukrainians. This makes them mad about Ukraine and Ukrainians. Nobody tells them real history, of course.