Content production and distribution are the 2 main costs, paid by cash (subs/donations) or ads (which is just a secondary market for attention-to-cash conversion). That's all there is.

I'm not sure what you're even arguing now. You seem to be saying that some sites exist where the creator pays both costs instead of the consumer but I don't see what point that makes. Like I said, that particular scenario is an absolutely tiny portion of the content available.

Is your argument that only content that's completely paid for by the creator is good? That makes no sense.