The Externalization Illusion: How the EU Manufactures the Migrants It Seeks to Deter
The Externalization Illusion: How the EU Manufactures the Migrants It Seeks to Deter

The Externalization Illusion: How the EU Manufactures the Migrants It Seeks to Deter - The Tahrir Institute for Middle East Policy

Worth a read, really a very good article! Highly recommend!
That said, TL;DR:
It's colonialism.
Such is the policy when you don't treat migrants as people, or at least as second-grade people. You don't do shit, because why invest in helping them even if that would've naturally reduced migration, when you can just ask other countries to do whatever you need to keep them out.
The alternative of rights-based development and labour market reform promoted in the article would be just as neocolonial as the current system.