The book contains ecofascist, white nationalist, and militant accelerationist themes and content, espousing several conspiracy theories including that of the Great Replacement.

The book suggests that violence is the only solution to the perceived issues of modernity, and criticizes industrial life as opposed to the purity of nature.

The book includes scenes where the protagonist suggests that he has shot up a gay nightclub, and curb stomps a leftist woman, as well as attacks on ethnic minorities, the poor, and trans people.

You architect harassment...In a week, we'll reenter the world as our usual selves...But this time, we accelerate heavily from within.The book's narrator encourages the reader to channel their nihilism into something "productive" through violence and become an accelerationist, sarcastically suggesting that they "especially do not" destroy power stations without getting caught.

[11][6] Ma, a militant accelerationist, has been outspoken in his praise for Unabomber Ted Kaczynski,[11][7][6] and with the Pine Tree Party encouraged mass shootings and other violence for the purpose of "promoting the advancement of the white race" and to safeguard nature.

[19][20] Along with works like The Turner Diaries and the manifestos of white supremacist mass shooters Brenton Tarrant and Dylann Roof, it has been included in an "Audio Nazi Library" on Telegram.

[7][2] Helen Young said that both the book and its sequel were stylistically similar, both being reminiscent of the novels American Psycho as well as Fight Club, in their expression of misogyny and violent masculinity, as well as its inclusion of "hallucinatory episodes".

[2] Graham Macklin writing for the academic journal Terrorism and Political Violence called it "saturated with irony and dark mordant humour", in a way that was reminiscent of online message boards.

[22] Writer Andrew Marzoni noted it with Bronze Age Mindset as evidence that "the current trend of far-Right literature is pseudo-academic in its pretensions, but lacking in novel interventions".

He said Harassment Architecture "blends the Nietzschean pastiche of Bronze Age Mindset with a flat, affected, first-person narration derivative of Houellebecq and alt-lit writers such as Tao Lin", and compared the disclaimer at the beginning of the book to 4chan posters saying their trolling was merely doing it for the "lulz".

[5] One commentator called it a "memoir-cum-manifesto";[16] Helen Young and Geoff Boucher described the book as a "fictionalized lone wolf rage fantasy" that justified hate crimes in what the book portrayed as a "degenerate civilization", targeting typical "culture war" topics like political correctness, mixed-race relationships and sexual harassment laws.

[17] Macklin argues that the thoughts expressed in the book are "broadly congruent" with Kaczynski's civilizational critiques and the negative affects civilization could have on many aspects of life, including personal autonomy and freedom.

[24] Helen Young argued that the book and its sequel were both "profoundly gothic" in their contents, functioning as "narrative manifestos", viewing modern America as "inherently terrifying", and were an example of the far-right's exploitation of online media ecosystems.