No system will work
It will.
We need to have American style federalism and the government should offer tax benefits to any Somali that moves to a region in which their qabiil is a minority.
This will incentivise Somalis to move to cities in which their qabiil is not dominant to the point that each city will become a mixed city.
Then the government should institute legislation stating that a qabiil cannot make up any more than 30% of Xamars population.
Qabiil will exist but qabiilism will die.
Anyone who does not support this supports qabiilism which is condemned by our prophet SAW.