This is why such sites without real alternatives should be controlled by society, and not by companies where two people hold the majority of voting rights.
The question is if the power is actually with Larry and Sergei, or if someone more powerful could easily seize power from them, or pressure them into doing something they want.
If Larry or Sergei die, do you trust all their inheritors? Do you trust all people who can threaten Larry or Sergei?
Do you true the next secretly chosen and annointed royal red family president after Xi? That's if Xi actually decides to leave after his term is up, of course.