It is a great move to open up Africa for Africans and Pan-Africanists in the diaspora, especially black folks looking for a place to retire with their fixed income. Retiring African Americans have flooded Ghana with their 5K plus social security monthly payments in dollars. Imagine Kenya securing even 30K people to spend their monthly fixed income in Kenya. You can easily add 30K+ millionaires to the Kenyan economy with American pensions. Since they started welcoming retired folks, Ghana has added $6 billion annually to the economy since they have seen over 200K African Americans move to Ghana to retire. It will be beneficial if structured well to attract FDI and folks with money. It will hire locals, enrich the culture, and expose Kenyans to decency, discipline, and much more
On another note, if poor people come and build more slums, things might be thick. Systems and institutions should have been put to a stress test before making a decision. Somalis, Ugandans, Sudanese, Nigerians, and our neighbors who know how to corrupt officials and systems will soon be Kenyans with passports, IDs, school records, and everything in between.
In brief, corruption has been dealt with before welcoming many folks, especially foreigners with more money than locals.
I would be OK with Jeff Bezos and other billionaires coming to buy everything as long as they build, develop, and hire many Kenyan youths.