Countries that had nothing whatsoever to do with Sykes-Picot or the Middle East also feel compelled to import huge numbers of people, so that is not the most pa

Countries that had nothing whatsoever to do with Sykes-Picot or the Middle East also feel compelled to import huge numbers of people, so that is not the most parsimonious explanation, unless you think e.g. contemporary Sweden & Norway are somehow responsible for the actions of the UK & France 100 years ago.