The big problem is that Google is the major way people discover goods and services. If you have a site that sells garden hoses, the best way to get eyeballs is to write blog posts that a potential user of garden hoses might search for. "How to install a garden hose." "What is the best garden hose."
This kind of content marketing can drive huge traffic and thus huge sales.
But only results on the first page of Google matter, and the farther down the first page you are, the less traffic you get.
Now, the 15 companies that produce garden hoses are fighting against each other to get the 10 slots in Google's first page for any given keyword.
With AI-generated articles, it's become a race to the bottom. Google rewards AI-generated, keyword-optimized blog spam. If you want to be one of the 15 companies that makes it into those 10 slots, you better believe you need to write AI-generated blogspam too. And when everyone has to do that in order to compete, all that's left is the AI-generated blogspam that has infested the modern web.
You almost have no choice as a business. Either write AI-generated blogspam that Google loves, or your competition will, and bury you in the search results.