This is nonsense. To declare the death of UX/UI at this point in time is the same thing as declaring the death of design.
Absolutely everything will be automated and accelerated in the next years with the uprising of AI, including design and not excluding C-Level decision making. We will in fact live in an even more profit-driven and minimum costs context: even if you are an executive or a recruiting manager you might end up being replaced by AI because your technical/logical skills will be coded into a machine that is much faster and don't need sunlight or sleep to replenish work energy.
Money will in fact keep spearheading everything that happens but creating businesses, products and brands will be much easier and more accessible than it ever was, and so, people will cut many corners and costs in the same proportion that they will find themselves with a massive amount of competition towards the solutions they are offering.
To properly answer the question: "What is the most important thing for a tech business?" you first need to answer the question: "What is the most necessary skill in an AI-Native economy?"
The answer is creativity because machines can't produce lateral thinking and it will all be about knowing the right questions to make so that you can get the best outputs of information. Logic is never enough to make the right questions and that's where rationality, empathy and artistry (which results into creativity) comes into place in order to help you find the right problems to be solved.
It seems to me that you are clueless in regards to the real role of a UX/UI Designer. Before digital products were even a thing, advertising agencies had a creative department where designers and copywriters worked, that would be the very same department where UX/UI designers would work. UX/UI designers are not just people that puts together wireframes, research, user flows and interfaces on Figma, they are the essence of creativity in a project because they create concepts out of nothing, they constantly take iterations from zero to one, not like machines but like humans with the capacity to invent new things. Their role might be to make screens and structure smooth experiences but their vocation is to solve problems through creativity and aesthetics. Any problem.
Thus, the golden age of UX is only starting because soon, designers will realize that sometimes they understand more about business than their managers or CEOs, fairly because it is their ideas that improve the products, it is their heart that thinks about the consumer constantly and it is their hands that craft the next big feature of a technology. The golden age of UX will be brilliant simply because companies that acknowledge the importance of design and creativity in this particular moment in history will find themselves being lead by true experimentation and innovation while other boring companies will drown in a sea of copies instantly built by AI.
