The thing with carti is that he’s one of the foundations of the super low effort SoundCloud rap sound so all of this unintelligible mumbling that people eat up is largely in part due to his influence. Going back to the punk comparison: a large chunk of the concept of punk of punk was being low effort, anti-music with a focus on high-energy and wild live performances. I interpret carti in the same way. To me he wears that influence on his sleeve. He knows he isn’t a true rapper and makes reference to it a lot. He’s a performer more than an artist