Hmm. Yes I think it's a sense of post-millennial irony. Also, the beat is damn good. These guys are low budget and underground, unknown, make their stuff in their garage, kind-of-thing. All of the music I present from Artopium has been posted by mostly unknown musicians who are not signed by any major label. My goal is to get them into the limelight. So my first argument with your comparison to the videos above is that those dudes were propped up by major labels and generally sucked because they lacked any original quality. As a response to vapid music put out by the music industry, a kind of low-fi low budget sounding genre of techno came out called "Electroclash" which was intentionally made to sound bad. Lyrics in electroclash music are ironically flat, monotone, with sort of "bad beats". Go look this up on Google if you're not familiar. Fast forward now to 2012, A band starting to become popular that took this idea to "the next level". You may have heard of Die Antwoord before. If not, definitely watch the video. ;) Regardless of what anyone thinks of Die Antwoord, they redefined this irony further, taking to unbelievable proportions. Die Antwoord is meant to disturb you, to shock you out of your sense of "normal" music. But it's done with a sense of irony and self-fulfilling prophecy. Actually, without writing a 5000 word dissertation, I'd have a hard time explaining Die Antwoord in a Steemit comment. As one of their lyrics explain, "If you haven't got it by now then you're never going to get it."
A lot of people refer to the genre that Die-Antwoord has created as "rave-rap" but I don't think this explains them well enough at all. However, Solocult can be better understood in this context. Hope that helps.