No idea how Romanian works but it's a Latin language so there's every chance that it's similar to Spanish here.Fucking unbelievable, even if you can twist it that negro is a general term. You don't refer to a person as "this black".
In Spanish, el negro doesn't mean "the black" but "the black man", just as la negra means "the black woman", el blanco "the white man" and so on.
In and of itself, and unless there's some other context, it isn't racist in the slightest