The Bantu people are not specifically Nigerian. The Bantu are a large group of ethnicities primarily found in Central, Eastern, and Southern Africa. They speak Bantu languages, which belong to the larger Niger-Congo language family.
Nigeria, on the other hand, is home to a diverse range of ethnic groups, including the Hausa, Yoruba, and Igbo, among others. While some Bantu-speaking communities may be found in Nigeria, they are not the predominant ethnic group in the country.
In summary, the Bantu are a widespread group across many African nations, but they are not exclusively or predominantly Nigerian.