Earlier quoted context omitted.
"russia can fuck off from Ukraine any time it wants and the war will be over immediately" You mean leaving the people of the Crimea, DNR and LNR to the mercy of nationalistic Ukraine?
Saving the people of occupied territories from russian rape, murder, forceful deportation, looting of property, etc.
As for DNR and LNR, it's as meaningful as saying that Russia is saving people in Ukraine from being burned alive by Ukrainian nationalists [0].
[0] https://en.wikipedia.org/wiki/2014_Odesa_clashes#Trade_Union...