It has occurred to me that one of the key drivers of the tensions around migration, stems from the undignified arbitrage of human beings resulting from the discrimination to free movement across borders.
Global corporations are permitted free movement[0].
Global capital is permitted free movement[0].
Global elites are permitted free movemen[0].
The overwhelming mass of humanity is constrained to very limited movement.
The ability of enterprises to benefit from pools of constrained humans without those benefits being similarly constrained to flow in that pool, but instead freely exfiltrate those benefits - is the source of most of the world's inequality, and consequently stokes the demand to migrate (legally or illegally).
[0] - not quite completely, but near enough as makes little difference.
EDITED to fix formatting.
Global corporations are permitted free movement[0].
Global capital is permitted free movement[0].
Global elites are permitted free movemen[0].
The overwhelming mass of humanity is constrained to very limited movement.
The ability of enterprises to benefit from pools of constrained humans without those benefits being similarly constrained to flow in that pool, but instead freely exfiltrate those benefits - is the source of most of the world's inequality, and consequently stokes the demand to migrate (legally or illegally).
[0] - not quite completely, but near enough as makes little difference.
EDITED to fix formatting.