People like communicating in natural language.
LLMs are the first step in the movement away from the "early days" of computing where you needed to learn the logic based language and interface of computers to interact with them.
That is where the inevitabilism comes from. No one* wants to learn how to use a computer, they want it to be another entity that they can just talk to.
*I'm rounding off the <5% who deeply love computers.
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