I guess my point is that the argument being made is "if you lift dumbbells with a forklift, you aren't getting strong by exercising". And that's correct. But that doesn't mean that the existence of forklifts makes us weaker.
So, I guess I'm just saying that LLMs are a tool like any other. Their existence doesn't make you worse at what they do unless you forgo thinking when you use them. You can use a calculator to efficiently solve a wrong equation - you have to think about what it is going to solve for you. You can use an LLM to make a bad argument for you - you have to think about the inputs you're going to have it output for you.
I was just feeling anti-alarmist-headline - there's no intrinsic reason we'd get dumber because LLMs exist. We could, but I think history has shown that this kind of alarmism doesn't come to fruition.