`*he didnt say just ``genetics``, he said DESCENT (can you read ?). Where do you think you come from, a fuckin test tube ? Ask anybody, alot of your ethnic or cultural identity is inherited or passed down from you ancestors/family. Actually read what hes saying you dumbass, your personality/behaviour, your genes, you physical appearance and for many people alot of other cultural customs like language you get from your family since they raise you. The common descent of a group of people is where alot of this comes from. Obviously when you live in a  a community with others of this heritage, that identity lasts longer. Thats why on average Irish (not Scots-Irish), Italians, Germans, Blacks/Africans, Asian, Native Indians, Spanish/Hispanics keep more of their identity longer here in the USA then other peeps like English and Scottish. You walk in my neighbourhood and say im only an ``ethnic American`` or somethin stupid like that, you get knocked the fuck out. You people need to wake the fuck up.  `