"Since it must be so"

"Sayonara", a famous novel and film set in Japan during the Korean War, tells of 2 US airmen who fall in love with Japanese women. If the couples married they could not live in either Japan or the US. It ends with one couple committing suicide. I was surprised to read recently in the blurb of Bernard Cornwell's latest book "Warriors of the Storm" that he became a novelist because although his wife is American he cannot work in the US. His series of novels is set in 9th and 10th century England and last year was a TV series "The Last Kingdom".
The Council of Europe states in its literature: The international community has long-recognised the privileged positon of women in transnational marriages. This is because they can live in their husband's country (as well, of course, in their own).
In 1979 The Conservatives promised to stop foreign men from being able to live in the UK through marriage, but did not keep their promise.
In the 9th and 10th centuries England's problem was foreigners (Danes) wanting to occupy the place. Now that is what drives many Britons to want to leave the EU.
In 1991 I was sitting on a bench in crowded Sannomiya shopping mall in Kobe, Japan, when I heard an American (Canadian?) voice say "The English are so like the Japanese it's weird".
In Saxon England "weird" meant "fate". Hence the Weird Sisters in "Macbeth".
Voting to leave the EU because of immigration is odd because it won't work. Immigration may well increase as a result of the rush to get here to beat any restrictions.
In 1962 there was a rush of young men to come to the UK to beat the Commonwealth Immigration Act.
"Sayonara" = "Since it must be so"