The UK is roughly 82% English, Welsh, Scots, and Irish ethnicity. That is not a “near extinction” number.
What is the age of the native population compared to immigrants?
Do you need the last Brit to be in a cage, to be an exhibit, before you understand what is going on?
However long it takes, the full intent is to eliminate whites from the face of the earth. Before they can do that, they need the numbers of non-English to be high enough to prevent the native Brit from being able to exercise his franchise with any meaning.
In the mean time, the British elites will be quite happy to have teen white British girls be sold into prostitution, 5 year old child to be stabbed to death, and use the police to throw in jail, to not be seen again, anybody who complains about the arrangement.
It’s all right before you and you see nothing. That’s part of the problem.