To me, the issue here is that demagoguery is filling the vacuum left by the New Democrats' devastatingly failed consensus with neoliberal policy. Those "low-information voters" got that way because they've been left to twist in the wind of disinvestment, unplanned globalization and the like. The draw isn't demagoguery per se, it's a cohesive narrative that seems to hold together for people trying to make sense of their circumstances. The enduring failure of Obama's presidency (if you read him as an earnest but stymied reformer) is the inability to craft a strong narrative that not only draws on the real and enduring successes of labor, civil rights, New Deal movements and call into question the failed policies of his predecessors in his own party (hello Glass-Stegall, hello Greenspan, hello NAFTA). People are still looking for an "outsider", and apparently can't stoop low enough to find one, because the one who said he was going to make a real systemic break with the past has done no such thing in terms of policy or rhetoric.
What, two occurrences of "narrative" and no "meme"? For shame!
Gawd your libtard-babblespeak is a joke.