Sure you can. The ability to establish a noncompetitive monopoly via paying billions of dollars to maintain a market position that allows them to make those pay

Sure you can. The ability to establish a noncompetitive monopoly via paying billions of dollars to maintain a market position that allows them to make those payments and still make billions of dollars of profit is perfectly compatible with and even evidence for a monopoly. DDG isn't going to be able to write those checks. Though perhaps simply banning these types of exclusivity deals would be sufficient to return to a competitive market. It seems lighter touch than breaking up Google.