Rescuing them isn’t the issue. Plenty of NATO nations are providing amnesty to Ukrainian refugees.
The difference here is adoption. There are no intentions to return these children to Ukraine after the invasion.
In March 2023, the International Criminal Court issued warrants, opens new tab for the arrest of President Vladimir Putin and children’s commissioner Maria Lvova-Belova on war crimes charges related to the abduction of Ukrainian children.
So you trust Putin to be more honest than the ICC?
Good luck with that.