I know it's difficult to admit the full history for some, but here's a more complete history.
Soviets exterminate 5 - 7 million Ukrainians in the 30's. Some Jewish Bolsheviks participated.
Nazis "liberate" Ukrainians from the Soviets in WWII.
Some Ukrainians kill Jews during WWII.
Nazis then exterminate 3 million Ukrainians during WWII.
Soviets "liberate" Ukrainians from Nazis during WWII.
Soviets impose communism on Ukrainians after WWII.
The Cold War results in Ukrainians being liberated from the Soviets.
2014, along comes Putin.
The country promised all sorts of reforms to the various regions of the country when they voted to be part of Ukraine instead of going it alone. The reforms to this day haven't happened. The people in charge repainted the buildings, changed department names, changed the window dressing, and kept all the corrupt Soviet style machinery in place.
Ever since various factions have been fighting over who gets the biggest share of the corruption, not over how to reform the country.
The country is in or very nearly in a state of Civil War because no one believes a word the Kiev Kiddies say about finally doing what was supposed to be done decades ago and the Kiev Kiddies haven't done anything to convince the people otherwise. People believe Kiev won't do anything except keep the same corrupt system running with the Right Sector types having more power than they had before.
Come on, what sort of idiots outlaw the use of the Russian language as their first official act? That's not even reasonable in the Ukraine.
There will be problems in the West as well as the East. Just let it keep boiling with the Kiev Kiddies lying a while longer.