[pcwalton]

> The biggest issue with illegal immigration is that is does not benefit the United States.

Yes, it does. Empirically.

> A country is not a charity.

Countries are obliged to admit refugees.

> It sounds mean but job of the US govt is not to rescue poor people in third world countries, it's to benefit it's citizens.

"Mean" is an interesting way to put "contrary to domestic and international laws and universal human rights [1]".

[1]: See the Universal Declaration of Human Rights, Article 14.