I'm sorry, what? A business model can somehow "not have a right to exist"? I hate to break it to you, but business models don't have rights. People, individuals have rights.
https://en.wikipedia.org/wiki/Rhetorical_device
How is a business owner just supposed to "not track" someone? You realize every time you pay with a Credit card, that's tracked, right?
An unethical part of the credit card industry. I don't have a huge problem with those records being kept, but they should not be shared or sold without consent, just like medical data. In an ideal world, that data would have a lifetime, probably around 2 years, after which it is truely, actually destroyed.
You have a right to browse Websites. You have a right to use whatever user-agent you want.
And likewise, I have a right to send those Set-Cookie headers. You can honor them or not.
Despite your completely arbitrary assertion, there is nothing unethical about keeping logs of activity sent to ones own server, or requesting -- not even forcing, but politely asking via a Set-Cookie header -- that a customer identify themselves with a unique token. It is ethical because it is completely voluntary. If you don't want the tracking, don't send the Cookie header in your request. It's really as simple as that.
You are not seeing the big picture. Your technical understanding of the WWW is not completely wrong, but it is pretty outdated. The tracking mechanisms we're starting to see are going FAR beyond just cookies. But, even that is not the real problem. The real problem is that this data, especially when combined from many sources, provides an almost complete trace of our lives. The profit comes at the detriment of our privacy, one of the greatest things we have in the USA. We may very well see the unraveling of our republic in pursuit of profit. Things can, and very well might, get Orwellian very fast.
It's not just one small piece of the picture that is unethical, nor am I somehow philosophically totally opposed to keeping records. It's the vast amount of data companies are harvesting and keeping that is unethical. It's the sharing of all this data without true user consent that is unethical. It's the unreadable and tricky TOSes buried in every website that are unethical. It's the preservation of this data probably forever that is unethical. It is the wanton carelessness with which this data is stored, transmitted and shared that is unethical. It's the government getting their grubby hands on this data to then also store it forever that is unethical (in this case, pretty much illegal). This information is our very lives. It deserves dignity, because that is what American is supposed to stand for: the dignity of the individual. Because, that is what is right and ethical. And, to believe that we can't fix this with regulations is to believe that we are a limp-wristed and ineffectual nation. To believe that this is the only way we can have the internet is to be too lazy to solve the really challenging problems of our time. To let our ancestors and descendants down. Tackling the hard societal problems is what we are called to do in a democracy. To just waive our hands and say "it's impossible" is to surrender.