The pseudo "entrepreneurs" who think they could outsmart the market by working less, are just naive. In a free market economy optimization is brutal and a freelancer developer will sell the same "product" cheaper, because he has the same technology available to him.
So the only way to get the gains from these AI technologies is to have something that can't be easily copied like market knowledge, data access or sweetheart deals with big companies that can pay more because their profits support the higher spend.
Also, services based SAAS especially B2B will not die, because a tyre shop won't have the time to write/debug/host it's own solution and will not want to depend to a single contractor who can disappear for a vacation. But the margins will go waaay down. 25$ for a set of forms and a database, not gonna cut it anymore.
True in the current state of LLMs, possibly not true forever if someone finds the magic bullet that turns the one-shotting (reliable) software dream that companies like Anthropic and Perplexity currently peddle into reality. Seems far-fetched ATM but the gains since GPT-2 have been very real.
We're quite a ways away from this though, even with Opus 4.6 and the like. And even further from it being part of Claude Code rather than some proprietary $1000/mo. closed-source solution.
As you say though, _if_ such a technology were to exist, it's Anthropic that holds all the cards, not random entrepreneur #25721 who is asking the Anthropic API the same thing that the actual customer could just be asking directly. At that point you're an undesirable middleman, not a business.