Open Source, small teams and solo devs have always struggled to compete against the resource a corporation could throw at a project to get an army of workers to deal with the piles of less glamorous work no one would volunteer to do.
Now AI can be utilized to close that gap.
Corporate software development will never be able to adapt to small or solo teams going at the full speed possible with AI. Part of the purpose of corporate management hierarchy is to fragment and control developers. So that no single developer possesses too great a domain expertise, nor do they become too intertwined with anything critical and develop potential leverage against management. The management hierarchy exists to keep all the leverage on the side of management. Management hierarchy can serve an important purpose in certain domains, but it also unfortunately will inevitably turn into this. An entrenched bureaucracy always working to protect its own interests. It's a phenomenon that evolved in the industry because there' a mass of people who had nothing technical to bring to the table who found they could justify a big salary by inserting themselves in the middle of everything as gatekeepers. So then any 'progress' is dependent not on builder's simply building, but rather bureaucratic do-nothing gatekeepers giving the Okay. There is no way such companies will be able to go through the changes to enable developers to go at the full speed AI enables. It is completely contradictory to what they are.
Even though some big corporations are adamantly Pro-AI on the surface. They'll never be able to fully adapt internally to what it enables. They are doing that because they have to. There is market pressure to have a consumer AI narrative. Some team gets assigned to drive that effort. Executives are concerned about being the brand perceived as being ahead of the curve. But internally most of the company probably despises the AI push looking for any opportunity they can to derail it. Internally they'll never fully adapt.
If it weren't for the VC culture, which can be fairly rebellious, funding OpenAI and Anthropic to push this stuff out to the public and consequently making consumer demand, the big corporations would still have it be entirely internal. Google and others had internal LLM's as capable as the initial ChatGPT over a year before ChatGPT reached the public. If the card was entirely in the hand of the big corporations, it would not be getting played how it currently is.
Anthropic and OpenAI are going to benefit hugely from the rise of AI. As will any established company that manages to set up a department geared from first principles to enable maximal speed from AI. But that is going to be the rarity. Largely AI is going obsolete the corporate world the more the non-corporate world figures out how to maximally utilize it. That is what AI poses the biggest threat to.
The Anti-AI stance predominately pushes back on a potential threat to the establishment.
To be in open source, or a small team, or to be an independent and not be jumping on AI to figure out how you can move faster and automate away what corporate bureaucracy would typically subsume to grow and spread. You are working against your own best interests.