Your fellow citizens deserve more credit. They have brains. They really can and almost always do form adequate understanding of reasonable takes on new information.
But when their eyeballs are subjected to consumerist bidding wars and ranking algorithms to inflame, to stoke fear and insecurity, to render feelings of inadequacy, and they are so thoroughly manipulated, then you get information monoculture.
We need information diversity and information vitamins. Instead we’re allowing ourselves to be spoonfed information junk food.