If they chose just one "truth", wouldn't they be targeted even harder?

I'm not sure I follow? If a centralized service only presented "one truth" then it would alienate other markets which would then cause those markets to be lost. Imagine Russia and China capture Google and Apple, they can certainly agree to the history they want written and presented to the world; how quickly or likely or able is the rest of the world to stop funnelling money to the bad actors in control of these organizations and nations - we're quite lousy, unmotivated, incompetent at it currently.