If you were to calculate the figures by population size and density, the UK may take what you view as a miniscule share, but there are nearly 70million people on a smallish island here, already fairly tightly packed in if you want to allow some space for agriculture and food security.
We've not had food security for centuries, either in man power or crops, its just not possible, we need to import food and huge amounts, as we did in WW2.
We've also an aging pop. and birthrates in the negative, so who is going to look after us all, pay taxes and do the jobs that we will no longer be able to do?
UK has plenty of land but shockingly poor infrastructure and a weird housing dev policy that uses up huge space per dwelling, maybe that creates more wealth for Persimmon?
The Govt appear to want HK Chinese to do this all but many of these folk are old too.
Might be better to provide support and aid to poorer countries so people stay where they are, rather than travel '000s of miles but BJ cut that.....
What on earth events 400 years ago are to do with this subject is beyond me, too much wine or posted on the wrong thread?