I like Mr. Carlson and enjoy his videos although I'm not into tubes, repair and restoration of old test equipment. His warnings and self-promotion surely are a little bit annoying if you watch all of his videos but he's done a consistent work during the past 7 years or so. He takes his time and explains his thought process to the viewer... His videos aren't Gen Z friendly (attention span of 60 seconds or less) and you have to adapt a little bit to his style in order to enjoy his content.
His recent video about the Tek scope collection was jaw-dropping. This has been collected over years, maybe decades, and I also doubt all units work and will be ever used. But it's very noble from him to save those scopes from the landfill and give them a place.
He (and of course other channels such as EEVBlog, TSP, NFM, ZenWizard, W2AEW etc.) has helped me to take a lot of "electronics repair anxiety" from me and has encouraged to learn more about interesting topics in electronics and mechanics.
On the other hand: you have to make a living from your work and for professional YouTubers, you need to spend money in order to generate new viewership content. You remember early EEVBlog videos? Dave started in his garage, now he's built up a huge community over the past decade. Maybe he can do a recap episode of his past 10 years
You don't have to like anybody, just treat them with respect like anyone else. Internet can be a shitplace if you want it to be