I stand to be corrected, I still don't think Nigeria, is going to make any meaningful progress that will benefit the common man out there. You might have one or two things that'll look like " PROGRESS", but, in reality life is HELL, SHORT and BRUTISH to the average man.

There's so much agitation for a president or things that'll protect or promote the INTEREST OF THE NORTH. The Igbo's preferred anything/person that will caters the INTEREST OF NDIGBO. The Yourba's is on the lookout for the YOURBA INTEREST. Ijaw, Middle Belt, and other minorities are fighting for their own interest too, all these things are NORMAL and they ain't bad either. However, how can Nigeria, make progress or become a DEVELOPED nation when nobody is about Nigeria's interest? No matter how good a president/candidate might be, majority will not see any good in him simply because, he's not " MY TRIBE/RELIGION, hence, their tribal interest FIRST.

Every president have been accused of MARGINALIZING other tribes. Who has benefited from Nigeria? When will " Nigeria Interest" SUPPLANT the interest of the various tribes?

Such an important & germane question you have there. It is unfortunate that after a century of being together politically, issues like this still crop up. Personally, one disturbing thing is seeing Nigerians below the age of 40 years promoting tribal sentiments in this era of globalization. And most pathetic are government officials who have sworn to protect the constitution going against their oaths in the name of politics. I just pray that Nigeria will have an inspirational leader who can help us overcome this prejudice.