I haven't read all of the Unabomber Manifesto, but thought the parts I read were well written. I have not seen the series Manhunt, it sounds like they explore the psychology and philosophy of Ted Kaczynski. From what I remember about reading his words is that they were very similar to much of the environmental movement's philosophy. In a way, I am not surprised to see Netflix promulgating Ted Kaczynski's ideas, they are ideas that are concerned with population management and our future as a species.
American Spirit cigarettes probably are an affectation of indulgance for many people. When much of a person's world is full of sacrifices, it can feel good to associate with a luxury item. Some people go to the movies, some drink micro brews, some smoke expensive tinned tobacco, some go out to eat at restaurants or drink at bars. If you wear expensive clothes or make your car look better than is necessary, is it just showing off? Some have the money, some just want a taste of the good life after slaving away all week. In a way it is funny because most of us who explore the differences in products find that the prices paid for premium names, is just that, paying for the name.