Honestly, I am not saying that the Russian Federation are the victims here. The victims is Donbas people.
As I said, there were the Donbas separatists that in 2014 protested against the anti-Russian policies implemented by Poroshenko (there are so many videos proving them, now they want to erase history, but so many lawyers have saved the evidence that frames several people).
The Kiev regime responded with fire. Separatists were killed, it's a fact. And it was just the 2014. Also the protesters against Poroshenko's government were mass murdered in Odessa, in 2014. It's a fact.
So Russia decided to sign the two Minsk agreements, but actually they were all useless, because Kiev didn't respect them. Because Donbas republics didn't receive any autonomy and because separatists were still being killed.
So,...Russians intervened with a war of aggression.
Yes, at least at a political/governmental level, no one is an innocent victim in any of this. Since the fall of the Soviet Union, there have been ethnic Russians in the former Republics who have complained about mistreatment, ostensibly being blamed and punished for the actions of the former regime. Not just in Ukraine, but also in Moldova and in the Baltics where ethnic Russians have lived.
Nationalism is a double-edged sword, and one can even say that those who live by nationalism often die by nationalism. Among other things, it has led to certain notions becoming more widely accepted, such as the idea that, if your grandfather mistreated my grandfather, I now have moral license to mistreat you. (I don't agree with that view, as I think it's quite malignant, but there does seem to be some who do subscribe to such notions.)
The Ukrainians may have felt justified going after ethnic Russians in their territory, because they were resentful over how they were treated by the Soviet government. As a result, we're seeing an ethnic battle - a blood feud - which is very often the source of numerous conflicts throughout the world. It was similar in the former Yugoslavia, as well as throughout many African and Asian countries which were previously colonies and which had their boundaries drawn somewhat willy-nilly by European aristocrats who had no clue as to what they were doing.
In the short term, it looks like there will continue to be a lot of fighting and death. Both sides seem resolved to stay in it to the end, even though no one knows what "the end" may look like.