horroratory
Pessimistic, evil, and/or negative rhetoric that is devoid of any of the classical logos, pathos, or even ethos factors of good oratorical delivery. Devoid of any redeeming qualities, horroratory sells fear like a bad 1950s era Hollywood B- drive-in horror flick.
Did you see the 2016 Republican National Convention? Every speech was a horroratory, but Donald Trump gave a Trump University Speech 101 quality horroratorical address.