Why do people say whites aren't indigenous to Britain?

HA HA I know what your saying......But the vast majority of the anti white brigade are white????....And promote the refusal to recognise or give credibility to the concept of white indigenous british people. Themselves in fact???...I think that! in itself should tell you that whites aren't really worth saving......They are like lemmings, let them pile off over the cliff shouting apologies for themselves as they tumble........Base of a cliff... Best place for them.