The system that enables immigration is not unfair or exploitative, it is humane and fair.

The world we live in works the way it does because of economic inequality between countries. It provides incentives to developed countries for immigration. Residents of developed countries naturally do not want to do certain jobs in their country, those that are most needed by them. They believe that these jobs are beneath honor for people who are not students, or they cannot be paid as much as a domestic worker would ask for. This creates a demand for foreign labor coming from less developed countries.

This gives an incentive to people in underdeveloped countries, who have #knowledge, #skills and #ambition, who want a better life and are willing to make a certain effort for it, to move to a new environment and start a new life. People do not emigrate because of that first job they will do in a new country or because of that first salary, but because they know that they will have more opportunities in a richer country. They move for a second or third job, which they hope to find or create there after some time.

A Marxist who doesn't understand economics will say: "Look at the slave! He came from a shitty country to work here for pennies and now they exploit him. The #system is unjust and exploitative."

The Marxist, of course, is wrong. If the system were different, if the developed countries have no need to import cheap labor, many good and quality people would be condemned to remain in their village for life, which they could not choose and which does not deserve them, #poor for life, because in a richer part of the world there is no need for immigration. That would be unfair and exploitative.