I and countless others have been using them quite effectively for complex coding tasks since at least 2023. This seems to be a skill issue in itself or you haven't used any frontier models in about 3 years. Living in denial about new technology isn't very beneficial generally; look around you, the industry has already changed significantly, people like Linus Torvalds who are tough on even good human coders are willing to use LLMs nowadays.

If you know what you want to do (i.e. you have the architecture/pseudo-code in your head already), LLMs are a actually quite good at transforming that into real code and do save you time/effort. If you are using them like slot machines, and hope for the best after a vague prompt, then yes, it's not worth it, it just leads to frustration and wasted energy.