Yes, and the only current ethnic group birthed in England are the English. British Asians derive their ancestry from Asia, the ethnic group is not native to, nor born from England. They're non-indigenous to the UK/Europe. You inadvertantly proved my point.

QED.

>If we use the first definition, then white brits and everyone else born in the UK are native.

Not at all, the non-native ethnic groups are not native to the UK. Notice how only English people are listed as native to England.

>If we use the second definition then neolithic farmers with an Anatolian material culture are native.

As are their descendants which are the English.

>Since they were replaced there are no natives in that sense in the UK.

Their descendants, the native ethnic group known as English people, are native to the UK.

>But there is no interpretation where white brits are native and second generation immigrants aren't.

Wrong, this is the only interpretation: "The English people are an ethnic group and nation native to England, who speak the English language, a West Germanic language, and share a common ancestry, history, and culture."