Something is deeply wrong with such an adversarial ecosystem. If sites don't want to be found and indexed why go to any effort to include them? On the other hand there are millions of small sites out there keen to be found.
The established idea of a "search engine" seems stuck, limited and based on some 90's technology that worked on a 90's web that no longer exists. Surely after 30 years we can build some kind of content discovery layer on top of what's out there?