At the time these countries were created none of them were powerful enough to be a regional competitor to Britain. The brits were keen for individual countries

At the time these countries were created none of them were powerful enough to be a regional competitor to Britain. The brits were keen for individual countries to be stable so that they were easier to govern. Remember also that the British empire wasn’t created following a top-down strategic plan and that operationally it was a mass of country-specific special cases