But because jobs are scarce,a large proportion of those who migrate often remain unemployed.
I guess you are referring to certain country or countries. Which countries are you referring to? I noticed that you have posted under Nigeria local board recently, I guess you are referring to Nigeria. Know that not all countries are like Nigeria that has high unemployment rate. Many countries, especially in Europe have high employment rate.
Only in Africa the citizens are still having this problem of solving unemployment rates, a lot of population but fewer employment, it takes only those that are highly connected to land a job in Africa, those that are uneducated are seriously crafty in handwork making earnings out of it. There are available jobs in Europe, USA, and UK more in Africa, infact, workers in these places work hourly making leaving seems easy.