Makes sense to you but not to me. If you look at the countries listed, you will also notice that it includes background notes and the name of our ambassador, which is linked to a bio. We don't have a US ambassador to the US. We don't have foreign relations with ourselves. It appears you don't understand the role of the State Department in our government. The basic Mission Statement is: Create a more secure, democratic, and prosperous world for the benefit of the American people and the international community.
I understand the role of the State Department, and I am learning just how resistant to suggestions at least one of its employees is. Proposing the addition of our country to "The Country Pages A to Z" seems consistent with the Department's mission statement, and would help people around the world learn more about out country -- something that the State Department clearly sees as a part of its mission, since the same website includes numerous links to content about the United States, like the link to "USAGov: Travel, Transportation, and Recreation".
I'm sure the site editors could figure out what content was appropriate for the country page for the USA. Instead of a listing for the ambassador you might have the name of our president with a link to a related web site. Or just leave that entry blank -- the readers of the site would surely know why it was empty. All the general information on population, economy, etc. could come straight from other government web sites.
I wouldn't say it was "fear and ignorance" either; there has got to be a better, more encompassing word (or words) for it, 'populism' in the truest sense maybe?