It’s probably low effort scripts that are performed by influencers. The scripts are probably not written by the influencers because the influencer usually brings the looks, voice acting, and charm.
Some of them certainly, that beard and thick rimmed glasses guy with a dozen channels comes to mind (I don't know his name, but other people have given me the same description of him). Others are pretty weird looking nerdy guys tbh, I believe they probably read Wikipedia a lot.