The only places in the world that open borders can actually work is where hardly anyone wants to live. That comports with the available evidence. Also notice how social services are deliberately curtailed as that’s all that open borders can really support.
But for some, belief is all that matters, all that is.
But this doesn’t matter to Rackete, she’s an idealist and for true idealists there are no trade-offs, no negative externalities, no unforeseen consequences…there is simply the ideal and anything that furthers that is good and anything that doesn’t is bad.
Never mind that it’s impossible for hundreds of millions of anyone to move to Europe, and for Europe to survive that onslaught. Survival doesn’t matter to these idealists because as long as you are doing the right thing, providence will provide. And of course that will work out about as well as it ever has in history.