Do you know who else does things like being "noisy, dirty, corrupt, misogynist, cruel to animals, grooming and raping girl children" and can be a net drain on the state? Some white English/British people. The majority of criminal offences are not carried out by immigrants.
White English/British people aren't going extinct. Society is simply changing.
England/Britain is not the only part of the world to have made contributions to science, art, literature and more.
The kingdom of England was first unified as a sovereign state in, I believe, the 10th century.