Jamaican ain't an ethnicity...
u acting like there aren't white, indian & asian Jamaicans all over the place.
i too am Jamaican... BLACK for the record.
An ethnic group is a group of humans whose members identify with each other, through a common heritage that is real or a.ssumed. This shared heritage may be based upon putative common ancestry, history, kinship, religion, language, shared territory, nationality or physical appearance.
You're talking about the notion of race. And if you really want to get technical with it, we are all the same race which is human.