Why keep going with dividing your nation and bringing up the past

This generation who are the rulers for tomorrow should look at each other and make it all work, no matter what background you come from.
You have a good side like this you have all the tools available, its all instant with just a touch of the button where you all can work together and make changes for the best of Nigeria. But what do you do fighting against who is better then the rest i know its done with a bit of tongue and cheek. But it gives a clear outlook how average Nigerians think of each other.
By the way for those who think i dont know what im talking about come again.
I have been fighting this all my life being a mixture off 4 diff nationalities there was much to defend.