It's rather unfortunate that most Nigerians think Nigeria is the only country with diverse tribes and ethnicity as a result can't be integrated into a great nation. The obvious truth is that Nigeria isn't the only nation with diverse tribes, ethnicity and religious background. Asia, Australia, Europe, south and North America and the countries it consist has multiple tribes and ethnic groups but is Hardly an issue to them because they understand the resourcefulness, power and benefit of diversity likewise recognizing the fact they are human beings.
About 4 centuries ago nations like Germany, Italy, Britain and the USA didn't exist. It was all empires, clans, and ethnicities ravaging each other for land and territories. The victors dominating the conquest with laws and orders leading into the forging of nations existing around the globe which also includes Nigeria.
The only barrier to human development is ignorance and this is not insurmountable. My dear Nigerians, over the years our ignorance has been exploited owing to the negative light portrayed on our diversities. However it's not our fault as there are mega corporation, foreign powers and Nigeria elites benefitting in the process.
Finally, America is one of the greatest nations of the world because of it's multi diversity so let's rise above the level of segregation and meaningless division into the realm of a powerful nationhood.