We are different than those other countries. We are a nation of immigrants. It is one of the things that makes us great. Those that want to prevent migration from "shithole countries" are anti American.
Moreover, I would also downvote an article filled with American messiah complex for a single reason that I don't live there so it is irrelevant and confusing. Nowhere in the article does it say it's not applicable to other countries, moveover it can't stop talking about the whole planet.