Lack of education, and decades of brainwashing including an explicit underlying message purposely tied up in religion to benefit from that suspension of disbelief that everybody on the planet who isn’t a hardline far right Republican is explicitly part of a worldwide conspiracy against you specifically, low income white dude in BFE County, US with a population of 5,000, and every announcement, news story, discovery (scientific, archaeological, astronomical, doesn’t matter) is all fake to prop up the conspiracy against you specifically.
I’m super not knowledgeable about codecs and shit, but IIRC there’s one that the rpi 4 is just garbage at dealing with. x265 I think it’s called?