The slave owners killed by the northerners were primarily white southerners that tortured and killed slaves. Kulaks were not an ethnicity to be targeted for eradication, but a class that often violently resisted collectivization. Kulaks that complied were largely left alone.

As I proved to you, the soviets actually supported the preservation of Ukrainian identity, which was oppressed by the Tsarist empire. The soviet union was a multinational federation, it was in everyone's interests for people to not starve, as you need people to farm. Russians were not trying to replace Ukrainians, a naturally occuring famine was made worse by kulaks resisting collectivization. After collectivization, crop yields were higher, and famine eradicated.

You are parroting literal Nazi propaganda.