Change the word "LLM" to "Wikipedia", and then put most of your concerns to rest. Wikipedia didn't kill the internet or make online discourse pointless, an LLM wont either, the same way calculators didn't kill napkin-math.
> Change the word “LLM” to “tickle me Elmo”. Tickle me Elmos didn’t kill the internet or make online discourse pointless, an LLM won’t either