Not exactly Youtube but pretty much all professionally produced porn made since ~2005 is like this. They call it "professional amateur" or some buzzword like that. You've got a camera crew complete with lighting, sound and makeup filming the actors screw at some producer's vacation house and it's all done professionally but they try and make the final product look like it's just the actors and cameraman.
I don't think those numbers can only be reached with helpers.
How much effort camera/editing is really depends on the genre. E.g. for gaming channels, camera work basically doesn't exist, so it's "just" editing (which again highly depends on the style). At the lower level of "professional YouTuber", having to pay someone else vs doing it yourself would also make quite a difference for making the financials work out or not. Actually, I'd guess in gaming the most common external help would be a chat moderator for live streams.
> after literally one year of work we are finally finished with one of our biggest videos so far!!!
This would not fall into the category of "amateur" churning out a high quality video a week. These are maybe amateurs that did a considerable amount of work (with the help of others?).
Not exactly Youtube but pretty much all professionally produced porn made since ~2005 is like this. They call it "professional amateur" or some buzzword like that. You've got a camera crew complete with lighting, sound and makeup filming the actors screw at some producer's vacation house and it's all done professionally but they try and make the final product look like it's just the actors and cameraman.