"How Facebook Helped Donald Trump Become President" -- https://www.forbes.com/sites/parmyolson/2016/11/09/how-faceb...
"How Facebook ads helped elect Trump" -- https://www.cbsnews.com/news/how-facebook-ads-helped-elect-t...
"Here's How Facebook Actually Won Trump the Presidency" -- https://www.wired.com/2016/11/facebook-won-trump-election-no...
There is no such perception about how google "won trump the presidency".
Which is why I think that "all the focus on Facebook", despite the fact "Google tracking is so much more widespread"