'Systemic coercion' implies outside influence; citizens suffer from a number of internal biases, entirely aside from outside issues. Please just take a look at some of the literature on voter ignorance.

there's no reasonable evidence that people are too dumb/ignorant to make a good electorate. that's primarily ego talking.

and we don't need to correct for internal biases over a population because, by definition, internal biases are uncorrelated. but you said "popular", which is a social bias that correlates beliefs.