IMNSHO, Google's obsession is artificial intelligence. They have build a search engine to prove they were better at understandanding content of web pages. To improve their AI, they need to spy on every aspects of our life. They spy on all our web activity, on our phone contacts, on our mails, on our documents and on our deplacements (waze). The fact that this search engine has generated so much money was an accident. Now, Google fights are: political lobbying to avoid being destroyed for monopolistic behaviour, protect and increase their spying means, improving their AI.