People are not protesting hypothetical proper LLM tech-support, which indeed can be ok and cheaper than humans. People are protesting actual practical implementation of the LLM tech-support which they already experienced themselves, no need for second-hand retellings or stories/ads. In practice I had LLM of my goddamn bank (where I'm a premium and old client) hang up on me with a response "I don't understand you" and cut the call. And now I need to call them again, wade through a digital labyrinth again and wait on line again. Awesome. Or when I urgently needed help with a government ID application and the only official tech-support is an LLM chat which has approximately 20 super dumb scenarios explained and literally nothing else. And the only LLM sign is that now I need to type my query in free style and not select predefined buttons, but the result is the same. So I had to resort to going to Facebook (thank St. Mark for this "innovation") and beg for human help in the promo page of that application (and I got human help there, lol, don't delete your FB accs people). Or when my internet got cut (cable line fault was discovered later by a technician) and LLM of my MSO fucking banned me, because their system was bugged and kept disconnecting me from their end and I exceeded a really small number of retries (like 8?).

I'm pretty sure every one commenting here has their own horror story about LLM support. Now that is what people are angry at.