I remember seeing a clip of him lamenting that Parasite had won Best Picture, because of some trade negotiation problems he was having with South Korea (as if trade negotiations should somehow have been considered by the Academy in their selection process). So yes, he's an ignorant buffoon as far as that's concerned, no question.
My dislike of Trump kicked in long before he was a presidential candidate, with the fiasco over building his golf course near Aberdeen, attempting to bully residents off their land to do so. See the criminally underseen documentary You've Been Trumped for more. It will make you angry (in a good way). :)