If you give away your content for free and expect ads to sustain you, that will start failing once others get the value out of your content without seeing the ads. Examples are ad blockers, answers embedded in Google results, Stack Overflow clones, and things like ChatGPT.
If ads weren’t your business model you wouldn’t be using revenue from it.
The other issue is scale, and I don’t know how to address it.
It’s easy for someone (say the government) to have a friendly policy and say “you can use dig in a park” thinking it’s useful to campers and such.
But when someone shows up with a professional strip mining crew, things are different.
If you run a site providing quality information for free, making money off book sales or professional services or such can be a good living. Even if answers end up in the Google answer box, more complicated stuff or analysis still requires a visit to read and people can start following you from there.
But if ChatGPT or whatever can “read” your stuff and give out 80% of the value without anyone even knowing it came from you, you’re screwed. Your business model no longer works. Any kind of “give away good information” business model fails. Same issue artists are now seeing.
And I don’t know how you fix that without some kind of ban. But unless every country everywhere enforces one… you have to work with the lowest common denominator and lock all your content up. No web search. No Google answers. No chat GPT. “Please don’t scrape me” in robots.txt won’t work.