Completely disagree. Google has far more data including mapping data that FB does not have. A key aspect is FB only has curated data where Google gets all your data.
I would never share my searches on FB. Google photos has all my photos and FB what willing to share. Then YT has over 1 billion hours a day viewed which is 19x more than FB video and growing faster.
Facebook is like the new TV. There's a ton of interaction with it and most of that content is locked away from Google's reach.
They are fundamentally more powerful than Google and are underpricing their ads.