So people coding with LLMs shouldn't get paid then, right?

That is in fact the end goal of CEOs pushing LLM use yes. Not possible right now, but if it were they would absolutely take that option.

[citation needed]

Does "companies will cut unnecessary costs" need a citation?

Do you think the CEO of your company hired you and pays a lot of money for you because they like you?

Do you assume that five years from now you'll get paid for coding with LLMs?

Correct.

They should get paid by the LMM only.