I know someone who used to go to rage against the machine concerts in their youth and is now a Republican. Every day I wake up and thank god I am not that braindead
I remember chuckling to videos of drumptards dancing to RATM during the Floyd protests and covid. It was obvious that their only takeaway was "fuck you, I won't do what you tell me"
It's about total control from the perfect totalitarian state. Mass surveillance is a small part, and control of language is also a part. But it's also about control of truth and history, and eventually even control of the inner mind.
Surveillance isn't done by cameras in the book, it's done by the citizens. One of the side characters joins the main character in jail in the final act cause his kids told on him... and he was proud of them for it.