I think, in retrospect, this will be one of the most debated questions of the modern age.
I too am a migrant. I have many close friends who are migrants & descendants of migrants.
But we all agree what we are seeing in the west in the last 5-10 years is wholly unnatural and manufactured. Purposeful. With intent and planned.
To what end is the real question...
Balance GDP?
Offset plummeting birthrates?
Create societal tension and conflict?