As a nation of immigrants, we recognize that a vibrant and just economy requires the contributions of everyone. Those who come seeking decent work to support their families by and large complement, rather than displace, American workers. But we need to fix our broken immigration system to stop the exploitation and marginalization of millions of people as well as address the development needs of other countries. In doing so we would also level the playing field among workers, provide more opportunity for all who can work, and bring about a needed "change of attitude toward migrants and refugees" (Pope Francis, Message for the World Day of Migrants and Refugees).
Supporting policies and institutions that create decent jobs, pay just wages, and support family formation and stability will also honor the dignity of workers. Raising the minimum wage, more and better workforce training programs, and smarter regulations that minimize negative unintended consequences would be good places to start.