Have you seen the automated tests that QA members deliver? My experience is that they are horrible, and it's not so hard to beat that low quality bar with an LLM.
I have a theory: if they were good at writing automated tests, they would have been developers instead of QA engineers.
Not saying that there aren't any high quality QA engineers, I worked with some. But LLM's raised the bar in a way that most QA engineers can't reach.
Huh, never thought about QA writing unit tests.
In my limited experience they write test cases, test each story, do regression test, verify bugs from customers. All by hand.
At my current job I don't want to miss them.