There are basically two responses to immigration: the racist response calls for closing borders, and the socialist response calls for workers to be as free to move through the world as the goods they produce.
Book Review: Class Struggle Unionism is based on the understanding that workers create all social wealth, and a system that allows a few to obtain billions in riches while the producers of wealth live in misery is an illegitimate system. Once we accept that reality and act as a class, victory will be ours.
Socialism is the Best Medicine