Are the "we wuz kangz" movements disrespectful to West-African culture?

It's like saying "we are not content to be west africans, we will claim egypt and Israel". The thing is, there is nothing to be ashamed of... the richest emperor ever was black (Mali) Claiming Egypt? The Kingdom of Kush beat Egypts ass in a war and took it over for a time (that's where the black pharaohs come from) You don't need to claim to be "hebrew Israelites" or Egyptians to feel proud