To your first point: Person A follows the philosophy “If another person is good and they say X, then I will believe X.” Person A can be manipulated through so

To your first point: Person A follows the philosophy “If another person is good and they say X, then I will believe X.” Person A can be manipulated through some difficulty. A bad actor has to convince person A that they are actually good, and then they can mislead them. Person B follows the philosophy “If another person is bad and they say X, then I will believe !X.” Person B is trivially easy to manipulate. A bad actor pushing Y just has to say !Y then act like an asshole on twitter.