Subtle Edit: I believe people have the right to be not that they should be free to become American citizens. That right, though, comes with a myriad of complications depending on that individuals personal reason for wanting to live in America. For me, it's difficult to have a blanket opinion on every single illegal immigrant because of their personal experiences in coming to America.
I do not believe we live in a completely globalist society nor should we at this stage of history. Globalism is a Utopia and we all know how Utopias turn out. Nation states should however work together to try to better the planet we live on and encourage peace. They should defend their borders and interests but also show compassion to immigrants.
I also think you have the right to move to Eritrea. Give it a shot.