I am currently running a website which is 100% written by AI, publishing about 2 articles every day. It ranks on Google for the keywords I am targeting and the traffic is also increasing (went from 0 to 2000 monthly visit in 6 months).

My content is not mindless however, it is highly specific to R&D folks, coming from annual reports, sustainability filings, and a company's public announcements. It is something not easily found outside but AI is helping me publish things on Scale.

The point is, AI or not AI doesn't really matter if your content fulfils a need, a purpose of your target audience. Google doesn't mind if it brings new value to the table.