The article points out, correctly, that Ignatius J. Reilly is extremely reactionary in his politics. He doesn't want to take our culture back to the 1950s, he wants to take it back to the 1350s. The article ends by stating that Ignatius was not an anachronism but a prediction, "the godfather of the Internet troll, the Abraham of neckbeards, the 4chan edgelord to rule them all."
It is certainly true that Ignatius is such a reactionary. Nevertheless, I feel that the narrator makes it abundantly clear that Ignatius's views are being ridiculed in the book. Ignatius is a carnival demon who stirs up chaos, but who is then expelled from the community as it puts itself back together. But there is some question as to what the real-world political implications are even for a fictional position that is being ridiculed. Further, although Ignatius's position is ridiculed, he successfully criticizes the liberal values and institutions of the modern world. The book is, as McNeil said, a reverse satire. Modernity is satirized, but then the position of the satirist is satirized. That having been said, it is rare in literature for modern life to be critiqued not from the left but from the far right.
I feel that Toole's own position was supporting the center, as Bissell himself opines. The part of the ending that is positive is the story of the Jewish factory owner who ends his alienation and rededicates himself to his company. When he does so, he hires the book's Black character. His epiphany occurs when he watches a barge full of tractors being shipped from New Orleans to Liberia. Not exactly a 4chan ending.
In the book, Ignatius is friends with a would-be leftist revolutionary, Myrna Minkoff. They both attack the dominant social order, but from different directions. An interesting parallel in our contemporary society is the fact that the far-right will take ideas and tactics from the left. Trump in 2016 did exactly what Bernie Sanders had envisioned: he activated citizens who were not typically voters. The pollsters got the election wrong because they had not counted votes from this normally alienated demographic group. And many of those voters had Bernie Sanders as their second choice behind Trump. In Confederacy, Myrna's leftist position is portrayed as just as ridiculous as Ignatius's theological authoritarianism. Just as Stephen Jay Gould slammed the thinkers on the Darwinian right by equating them with creationists, Toole slams the radicals on the left by equating them with an advocate for the divine right of kings.
Bissell quotes Rosenbaum's statement that "a fair amount of the author's ridicule and venom is reserved for female liberals and liberationists." I think that is a fair statement. The two blocking characters other than Ignatius whose social status is knocked down in the novel are women: Lana Lee and Mrs. Levy. Mrs. Levy especially is the rich liberal whose well-meaning foolishness causes problems. Lana Lee is the strong, sexually assertive, independent businesswoman, and in the end, she is a corrupter of children who is condemned to a purgatory in jail. Myrna for her part is foolish, but she is actually a decent person, just obtuse. Her schemes fail, but they fail in much the same way that Ignatius's schemes fail. Regarding feminism, the criticism of the book is well-placed.
With regard to the feminine, the critical role played by Southern women in the publishing history of the book is noteworthy. Ken Toole's mother, Thelma, was essential to publication, because she salvaged it and championed it. I have elsewhere argued that because she decided to destroy the later revisions and submit the first draft, her editorial power almost raises her to a level of co-author. (For more details, see Ken and Thelma by Joel Fletcher.) Next, the person at Simon and Schuster who promoted the book was Jean Ann Jollett, the editorial assistant who brought the book to the attention of Robert Gottlieb. (For more details, see Ken and Thelma by Joel Fletcher and Butterfly in the Typewriter by Cory MacLauchlin.) Third in this chain was Bunt Percy. Thelma may have cornered Walker Percy and demanded that he read the manuscript, but he didn't. Instead, he gave it to his wife, Bunt, and he read it only after she endorsed it. (This is recounted in Butterfly in the Typewriter by Cory MacLauchlin.) So feminists may come out poorly in the novel, but the text was brought to us by women, and, in particular, Southern women.
One overriding character trait of Ignatius is his immaturity, and one can argue that it is a characteristic shared by the trolls and edgelords within our society. Trump himself seems to be borderline mentally ill in his immature narcissism. He seems unable to understand that the outside world exists. "Being true" in his mind is not being factually accurate to the external world but being loyal to himself. The question is: can we get him into that white Renault and pack him off to New York?