It is naïve to suggest Europe can sustain mass migration from Africa

Your editorial (“It’s time for a cultural shift”, Irish Examiner, April 21) argues that Europe needs to accept permanent large-scale immigration from Africa and the Middle East because of the poverty, tyranny and religious extremism which bedevils those regions.

It calls for permanent mass migration into Europe in the wake of the Mediterranean boat tragedies of recent weeks.

Alas, this knee-jerk humanitarian impulse completely ignores the likely long term