Refutation does not equal correction in this circumstance. Simply discrediting their rhetoric in a discussion does not necessarily reverse the effect it has on the less critical-minded. They can overwhelm via a strategy of "lie early, lie often".
Sleepers? Somnolent? Torpid? Hypnoid?
I do kinda like torpid...maybe "torps"?
Also, smog.
Refutation does not equal correction in this circumstance. Simply discrediting their rhetoric in a discussion does not necessarily reverse the effect it has on the less critical-minded. They can overwhelm via a strategy of "lie early, lie often".