Did all Raxanweyn vote on this or did some corrupt politicians and elders decide for them?
There is no such thing as an entire clan voting on ANYTHING. However, every clan has formal and informal representatives.
They proposed this initiative first and then Puntland created a federal state to remain autonomous to escape from the civil war and its warlords.
THAT's how Federalism was brought about.
Out of sheer desperation to escape from anarchy (Puntland) or to save a community who has a separate language and a slightly different identity. (Raxanwayn)