Our primate hardwiring militates against welcoming migrants. It’s that simple. And that complicated.

Individual human beings always act out of self-interest. There’s nothing wrong with this. It’s a simple animal survival drive. Beyond this, we are driven by a natural need to help our personal “species” survive. If we act for others, it is for our children, our families, our clan—our kin.

However, part of what makes human beings so successful among primates is our mental ability to extend our