There are two broad classes of attacks made on advocates of immigration:

• Ideological blindness and stupidity: These include elite conscience salve, leftist agenda, libertarian pipedream, economist blind spot, sentimentalism, and Asperger’s syndrome.
• Self-interest accusations: These include corporatist agenda, herd-building, and potential immigrant.

Here are some short pieces that manage to combine all or most of these attacks:

• The Open Border Lobby and the Nation’s Security after 9/11 by William Hawkins and Erin Anderson
• Michelle Malkin’s blog posts on the open borders lobby