Now that they've used DBM, DFP, and AdExchange to cement their U.S. ad monopoly, they can only get more growth by shutting down the flow of money to the rest of the internet. So they need more inventory of their own to compete with that of their clients' (e.g. other websites that use Google Analytics, DFP, GCP, AdWords, etc).

I would love to see an estimation of the hundreds of billions of dollars wasted by companies (and by consumers who buy their products) on Google ads.