I came across an essay on Lévinas today, "What Do We Owe Each Other?". It's by Aaron James Wendland, a research fellow at the University of Tartu and it ends like this.
Levinas has taught us that our responsibility for others is the foundation of all human communities, and that the very possibility of living in a meaningful human world is based on our ability to give what we can to others. And since welcoming and sharing are the foundation upon which all communities are formed, no amount of inhospitable nationalism can be consistently defended when confronted with the suffering of other human beings. “In the relationship between same and other, my welcoming of the other is,” as Levinas puts it, “the ultimate fact.”