Brin acknowledges that the data is valuable. It belongs to other people. Google makes enormous revenue from it. Perhaps it's time for them to start paying for it.
I didn't say anything about removing Google. That's a bit of a strawman.
We're not talking about marginal websites that, by your reasoning are dependent on Google for survival.
We're talking about businesses that have accumulated large amounts of valuable data such as FaceBook. The value of being searchable through Google is clearly not enough to persuade them to provide access to their data.
Integration is worth more to Google than it is to Facebook. When this situation arises in business, often the one who values the resource more makes a deal that involves paying money to the one who has the resource they want.