D'Souza makes a specific statement in favor of personal autonomy or individual sovereignty as a moral principle. This film is more pro-individualism, even hyper-individualism, than just pro American. It would seem to encourage political libertarianism. He doesn't get into how inequality (and luck, misfortune, or hidden dependency) should play out at the individual "karma" level.
Update: Oct. 8, 2014
D'Souza has his real detractors, well within the conservative communities. Look at the analysis of his book "The Enemy at Home: The Cultural Left and its Responsibility for 9/11" in National Review, by Victor Davis Hanson, article "The Mind of Mr. D'Souza", 2007, link. And today, on Vox, Dylan Matthews wrote a blistering article "Dinesh D'Souza, America's Greatest Conservative Troll, Explained", here. The article does go into a prosecution of the author, and the uncertainty that he will serve much of a sentence. As for his views: true, on colonialism and slavery, the idea that "everybody did it" didn't make it right. My own father once said that the importation of slaves shortly after colonization was the greatest mistake in American history.