‘Nigerians are hardworking but treated unfairly by ruling class’

While scrolling online I found this comment about the cause of Nigeria’s problems and decided to bring it here for us to think about.

Nigerians lazy?? Hausa’s are hard working, Igbos are even more hard working….Yorubas or Ijaws aren’t lazy too… Fulani’s?? I don’t know about any more hard work than walking long distances just to rare cows….
Nigerians are hard working…we are not just being treated fairly by the ruling class, though that would soon come to an end.

Is the commenter right?