So the winner in a Democracy or Republic should be the one who most successfully implements weaponized propaganda? The one who fills the airwaves and has the loudest megaphone and the money for the most ad buys? That is emphatically not what the founders of the United States intended, however much they may have initially limited the definition of a citizen. They expected the citizens to make reasoned choices, to be educated, to be well-read and to be rational actors. I highly suggest 'Common Sense' by Tom Paine.