Of course we can't trust Google to allow AI to strip away ads. But other browsers with other AIs, open sourced ones, will do that. Run the web in a sandbox and present a filtered output. Could remove ads, annoyances and rerank your feeds by time, or impose your own rules on the UI and presentation of the web. The browser AI should also monitor activity for unintended information leaks, because proper data hygiene is hard, and people need their own agent to protect against other internet agents trying to exploit them.