It says "based on the answers above" it depends on all the answers that you put in
If this is for a class, this might not be the answer you’re looking for.
America has always been against immigration. Even as it was being built on the backs of immigrants from Europe, the colonists who were already here despised them. Xenophobia has been a part of American culture since it was founded. This long history with anti-immigration and nationalism coupled with white supremacy makes many Americans wary toward immigrants today.
As fairness is a subjective term, let's analyse this in terms of what countries are able to do in the situation. In the General Assembly every sovereign nation that joins is allowed to express its opinion and vote within this global body of governance. Some may argue that this gives too much power to tinier nation states. However, the General Assembly allows for these tinier nations to be heard on a global platform, while reigning in any truly disastrous schemes via the permanent bodies of the security council which hold veto powers over any errant decision.