I completely agree that a person should call themselves whatever they choose to...As long as it is THEIR choice...So many people though have been forced to identify themselves this way or that way by others...Particularly people of African and Indian ancestry...Heaven forbid a *Black* person should call him/herself Choctaw or Cherokee...even though both Tribes have been mixing with Africans since they first met...
As for whites having some African or Native ancestry, I agree again that there are no doubt a lot more than not...
People who speak of someone "hopping the fence" don't realise mixing was going on long before any fence was ever put up...In fact, the fence was built BECAUSE of the natural mixing going on...