These are all silly non-problems (speaking as someone who works with lots of professors around how to put AI systems to effective use)

-the thing that motivates you doesn't have to be the same thing that teaches you (e.g. a book can be a useful learning tool even if it isn't human)

-you can absolutely choose to interact with an LLM in ways that generate productive struggle. If you naively ask it for answers it won't be much use in this regard. But that's just a poor choice of how to use the tool. Just like hitting yourself on the head with a book doesn't mean the problem is with the book as learning tool.

-You don't need structured content 'on long scales' to learn. You learn a little bit at a time. Long textbooks are a side effect of the economics of moving paper around. Not a prerequisite for learning. An LLM will happily mimic the table of contents of a textbook or an outline for course. And you can use future prompts to generate the bits you need as you need them. One-shoting a textbook is a silly use of the tool. Plus, we're not short on textbooks. We're short on ways students can get customized help: answers to the specific ill-posed questions they have in their heads. LLM's are quite good at this. You can have textbooks AND LLM's (and professors)

-LLM's are happy to disagree with you. Just ask them to and they oblige. Ask them to respond as if they were a tutor and they will mimic the assuredness if appropriate.