It was briefly sorta colonized by the italians for a few years in WW2 and a coupleyears before. it never took.I thought Ethiopia was never colonized. It remained a monarchy until the communists showed up during the cold war.
Ethiopia is at the very least Christian, so if there's a refugee crisis v2 there should at least be less terrorism.
As for why Ethiopia won't become another Somalia, it's simple Ethiopians are not Somalis. They are mostly farmers as opposed to semi-nomadic livestock traders and pirates. Somalis have been total shit since forever, and every single anthropologist who wrote about them up til Woke times said the same thing. Somalis are haughty, overproud, violent, and mercurial. They are Tusken Raiders.
Ethiopians are also largely Xtian and Jewish, so the poison of Islam is diluted there. the REALLY BAD scenario would be if bands of somali fighters/raiders poured over the border to sack and loot during the chaos. Their presence there, as with anywhere they go, would be catastrophic