Maybe we roll back the clock a few centuries then...oh wait.
Please tell me your history is better than your map indicates.
Most of the Blue Region, was taken by the USSR from... RUSSIA? There are Russian census going back to the area centuries before catherine the great.
The Purple region (Crimea) was moved from the Russian Province of the USSR to the Ukrainian in 1954, simply moving an internal border of the ussr.
Crimea was Russian since 1783, taken from the Turks by Catherine the Great. How much of an evil crime it was for Russia to take it from the turks. (as much of Blue and orange region was before also)
The yellow Region, maybe you can also lecture us on how evil it was for poland and lithuania to steal this from the Ukrainians. If you can figure out when Ukraine was ever really independent (good luck with that).
The westmost part (green) was never part of Russia, but it wasn’t really independent Ukraine going back histories either.... (Austria hungary, poland/lithuania, etc)
Ukraine is flat and not very defensible, so many empire wash over it