In Kyle and some other's cases, they are just talentless bums. And like Kyle, they got lucky during COVID when many people were searching for Disney World videos as a means of escapism from the lockdowns. I remember even a bunch of Disney World simulators (Minecraft, etc.) were surging in popularity, where they'd have digital replicas of the parks. People wanted a means of escape and Kyle and some others conveniently filled that niche at the time. But now everything has opened back up, so what does he really provide?
Anyway -- he has no talent, no ambition, no drive. He shits out a daily dump each day, as quickly and effortlessly as he can. Just so that he can continue to scrape by in life. All while grifting and mooching whatever he can't make up for in ad revenue. He steals all his ideas from others. He has no idea what direction he wants to go with his "content" so just makes it up as he goes along. No planning, no research, no editing, no pride in the "product" that he's putting out under his name. Nothing.
If it wasn't for COVID, Kyle would have been forced to work a real job by now. His stagnant audience consists of probably 50% hate watchers & people laughing at him and the other 50% are lonely shut-ins that developed a parasocial relationship over the years.