Professor need not worry. Nature has its way of auto-correcting anomalies. For instance, because GEMA on average became wealthier and more educated than the rest of the country, their women have the highest adoption of birth control in the country. That in turn has seen their population growth dip. Globally, birth control use increases with the level of females education. On the other hand, the previously disadvantaged communities such as the Luhya and Somali are seeing an explosive population growth. If Kenya sticks to its ethnic politics, the dynamics of the tyranny of numbers in 2050 could be unrecognizable when compared to today. The Kikuyu will probably have dropped from 1st to 4th or 5th.
Its a global phenomenon. You can see a similar pattern of nature auto-correcting anomalies with the richest nations having to open up to poor immigrants in order to fill the gap created by low population growth thus inadvertently leading to wealth transfer. The US is the best example of this model working pretty well.
All my friends are heathens, take it slow. Wait for them to ask you who you know. Please don't make any sudden moves.