And talking numbers and sustainability is not racist, it's logic, pure and simple. The left labeling anyone and everyone "racist" for bringing that up is why Merkel saw her party lose 30% to the ring-wingers, and definitely pushed a lot of Britons towards leave.Like UCFBS stated, it's all about sustainability, population management ...
The Indochina Refugee Crisis of 1975-2000 is a perfect example of a sustainable, refugee rate. 1.2M people total over 25 years, never more than 120K/year, averaging only 40K/year. And even that heavily relied on private charities to resettle refugees, as the US government does not do that.
Yes, alleged "right-winger" religious charities do most of the resettling. They break up extended families and integrate them into the non-secular US culture. It works wonders for people from various backgrounds. And this is pretty much an US-only thing. There is nothing like the private charity infrastructure, heavily religious-based, in the US virtually anywhere else in the western world.
I.e., Germany took in that many over less than 2 years, and does not have the private charities that the US does. This has led to slums, much like those that also exist in Belgium and elsewhere. This does not bode well for their future.
Now wnderstand the US has been taking in 2x to 10x the rate -- in undocumented, cross-border immigrations even the rate -- versus even from the days of the Indochina Refugee crisis since the late '90s, and it's only been accelerating with the taxpayer funded programs. We have incentivized undocumented residents, all while not guaranteeing them jobs and opportunity.
In other words ... we now have the real case where the majority of undocumented residents are not coming here for opportunity. In fact, that is backed up by the fact that legal immigration from, is now less than legal emmigration to, Mexico. I.e., legitimate Mexican immigrants are leaving more than they are coming into the US.
Even that alone explains everything. Now we can further talk about the organized crime -- i.e., trafficking drugs and guns on the backs of humans. You know, where 80% of all gun homicides come from in the US, per CDC statistics.