Oromos may have their squabbles and issues,
but they generally are united and love each other unlike Somalis. You have a group of people who don't even acknowledge they are the same people, believe they are descendants of individuals from a completely different continent, and want to break away permanently from the rest to forge their own cultural and ethnic identities. This is a catastrophic problem and not comparable at all to the Oromos' plight for even Ethiopia right now is on the brink of breaking apart forever which could easily result in the formation of the first independent Oromo nation.
They will gain nationhood for the first time in centuries, while you will loose nationhood.