Would you be upset if whites became a minority in the UK in the near Future?

Opinions? It wouldn't be the end of the world but I would be annoyed. People would say that it wouldn't bother them because the British Isle has been invaded by countless European Settlers so pure Britons don't exist. While the 'Pure Blood' Statement is true we must not forget that this is true of many cultures and races. For example many Native American Tribes were formed by the mixing of many smaller tribes and sub-cultures. Similar to the English race being formed by small Tribes of the Angles, Jutes and Saxons mixing together to form the Anglo-Saxons which mixed with other European Tribes and Cultures (Normans, Vikings etc) which influenced the culture and image of the English people. With this logic no-one is Native to most countries yet people claim that Native Australians are Aboriginals and are only said to be that because of the colour of the skin and in other cases many different skeletal features however they are most probably the construct off many different invasions and migrations . When people say there are no native British it makes me feel that the land of my forefathers is not something I can cherish because apparently I am not Native or Indigenous to this Land despite my traced family history of my family living on the British Isle's for over six hundred years (maybe more Chapman's kind of common Name, the further you go back the harder it is to trace ). Anyway, as stated above what is your take? Why do we claim that there are no indigenous Britons yet we can call Native Americans or Aboriginals Indigenous to there land? Is it fear off harsh criticism saying to the Aboriginals you are not really native to that land? Is it hard for people to be defendant of there Ethnicity and culture without giving into prejudice?