Tigray is irrelevant in the future of Ethiopia and nobody cares if they form an independent state or not. They need to repent for the crimes committed against Ethiopians and Eritreans to live in peace in the neighborhood.
No body cares about the nonexistent business that’s supposed to be done with Tigray. There’s nothing there to export and no resource to import things with from the outside world except food aid and other donations. You might have temporary stolen funds (loan taken in the name of Ethiopia), but that should dry up fast.
Am I missing something here what does Tigray have to export or import on it’s own?
I think the best thing is to keep things the way they are...