In my old age I’ve mostly given up trying to convince anyone of anything. Most people do not care to find the truth, they care about what pumps their bags. Some people go as far as to believe that perception is reality and that truth is a construction. I hope there’s a special place in hell for those people.
Software you create with LLMs is deterministic, because it is the same code as you produce manually. The process of creating it is maybe not, but it is a task of a programmer to review it before publishing it.
By contrast however, the programmer does not generally need to review the machine code produced by their compiler when coding in C.