When your AMP pages appear in Google's Search results, users aren't visiting your site. They are visiting a restricted shell of your site on google.com with functionality that benefits Google, not the website owner (examples: a back button to google.com, left-right swipes that take users off of your site, restricted monetization options, pages that don't display for 8 seconds if you block potentially-dangerous 3rd party scripts, etc.).
Is there no one left at Google who still believes in an independent, decentralized Web? The open WWW has always been under attack, but to see it fundamentally wrecked by Google is depressing.