There are open source or affordable, paid alternatives for everything the author mentioned. However, there are many places where you must use these things due to social pressure, lock-in with a service provider (health insurance co, perhaps), and yes unfortunately I see some of these things as soon or now unavoidable.
Another commenter mentioned that ChatGPT is one of the most popular websites on the internet and therefore users clearly do want this. I can easily think of two points that refute that: 1. The internet has shown us time and time again that popularity doesn’t indicate willingness to pay (which paid social networks had strong popularity…?) 2. There are many extremely popular websites that users wouldn’t want to be woven throughout the rest of their personal and professional digital lives