Would you consider Jamaican people as Creole? If so, why?

I just looked up the definition of Creole, as I know it has several meanings. It has three. The origin of it meant a white person born in the colonies, i.e. the West Indies or Spanish America. That is still one meaning. It can also mean a person of mixed French/Spanish and black descent, who speaks a dialect of French or Spanish. So, there could well be Jamaicans who could call themselves Creole according to those definitions, but you couldn't apply it to Jamaicans as a whole. Jamaica's racial background is so very mixed, as you described, that it must be difficult for many Jamaicans to know exactly what theirs is.