I can see that you expect Russians to be better people than Germans or Americans, while having worse prior history and being overally more poor and miserable.

That would be a noble expectation, but you could predict that it will not be uphold. Maybe because it is not possible in practice, or at least highly implausible.

Russans, in general, are people. People go to war when told to do so by their superiors. People rationalize what happens in the moment, to reflect on it and be outraged later.

If you were doing that in a good faith, good for you, but as you can see that's not how the world works.