I can speak for all Igbo people.
As an Igbo, growing up as a child, I can't remember when my parents ever spoke ill of other tribes or even refer to other people by their tribes.
They never asked us not to play with the Yoruba people or the Hausa people, they would only warn us not to mingle or play with any child they perceive is badly raised.
This is how a lot of Igbo children grew up.
Unfortunately parents from other tribes didn't raise their children this way. They even used slurs to mock some of their own who had traits like the Igbo people.