Generalise much?
I'm not African american and I can identify with the same thing. It's a common rhetoric in the Black British community for Blacks with direct African heritage to resort to making remarks like Caribbean blacks are slave babies, have no language, culture etc - in jest.
As I said in my previous post, some AAs have a bad habit of thinking the buck of discrimination starts and stops with them.
Less than 10% of the Africans taken as slaves went to modern day USA. Bare that in mind when you make these mindless comments, it is very offensive