Elites in the Anglosphere feel their grip on power waning and are desperate to import as many turd world voters as possible to act as a voting block against the Chuds who want their heads in guillotines.
It has nothing to do with "aging societies" or keeping welfare states afloat. None of these turd world migrants become gainfully employed net taxpayers. It's just a way for tyrants to import votes.
https://www.youtube.com/watch?v=jSySe5m-GOE
Dominic Cummings reveals the true purpose of mass immigration