I agree that colonizers have harmed indigenous people, but find the argument anyone has a birth right claim to property proposterous. As Proudhon proclaimed, “Property is theft!”. I expect any revolution toward anarchy to remove property from the owning class.
I am less knowledgable than you about “land back”. How does “land back” differ from other ethno nationalist movements like “blood and soil”?
My understanding of Euromaidan is likely tainted, but wasn’t that a Ukrainian alignment to the European Union and not NATO? Aligning to the European Union would still be a move away from Russian influence.