SoNature:

South East leaving Nigeria will not mark the end of Nigeria.
Anybody feeding you that line is only deceiving you
The day SE leaves Nigeria will mark the end of one Nigeria because the South South - which feeds the country and gets nothing in return - will start agitating to leave. This is the biggest fear of the beneficiaries of one Nigeria.

Nigeria is like a criminal organisation designed to favour certain people. When the biggest losers, chiefly states of the ND region, want to speak, the biggest gainers give the leaders of the biggest losers some positions to keep quiet or use force to shut them up.