Hanson does not belong to the immigration-is-inherently-a-catastrophe schoolNot having read the book I cannot comment at large. But it appears to me there is a school of people out there who cannot tell the difference between legal and illegal immigration. The wall street journal school of globalisation and open borders which is willing to sacrifice everything to the God of capitalism is as dangerous a utopia as the marxist degenerate vision is.
We should all stop using the oxymoronic phrase "illegal immigration." If it's illegal, it's not immigration, and if it's immigration, it's not illegal (unless some laws were broken in the immigration process, which is not what people usually mean when they say "illegal immigration").
Acceptable phrases are "illegal alien," "illegal entry," "people who crossed our borders illegally," "illegal migration," etc.
This is part of not letting the left determine the vocabulary.