Did they try locating the extended families, or did they just abduct thousands of children to be raised as Russians? That's a rhetorical question, they did the latter.
War orphans are not a new thing. Every war that's ever been caught has produced children who's families cannot be found, because wars are chaotic and also deadly.
Oh yeah, like how during the Iraq war when the US abducted all those Iraqi children and gave them to American families? Or when France stole all those orphans from central Africa to raise as little French kids? Or when the Canadian adoption system was flush with Afghani children they took away from their families and homeland?
Pretty sure abducting children after killing their parents has always been wrong.
When has it happened in a situation that wasn't genocide? Did the British adopt thousands of German children in WW2? Were thousands of Italian children adopted away to America?
If the US ever tried evacuating Iraqi orphans into the US adoption system, the right would start race riots over it. We didn't even let our collaborators in.
No, instead, the children were left in the war zone where countless numbers were killed.