The main reason Google loved search was because it was the primary way they got your personal info. Now Chrome gives Googles your entire browsing history, Gmail lets them read your email, youtube tells them what you're interested in, android gives google your entire life offline and suddenly the only thing google search is good for is as just one more website pushing google ads.

AI is going to be great at pushing ads. Plus AI trains you to give google even more control. Instead of just presenting you with a list of websites offering different perspectives and opinions on something, Google can just tell you what they want you to know/think (or not tell you anything they'd rather you not know/think about). The more you get used to treating google like an oracle instead of a librarian the easier it will be to manipulate you.