You should re-read that very slowly and carefully and really think about it. Calling anyone that's skeptical a 'denier' is a red flag.
We have been through these AI cycles before. In every case, the tools were impressive for their time. Their limitations were always brushed aside and we would get a hype cycle. There was nothing wrong with the technology, but humans always like to try to extrapolate their capabilities and we usually get that wrong. When hype caught up to reality, investments dried up and nobody wanted to touch "AI" for a while.
Rinse, repeat.
LLMs are again impressive, for our time. When the dust settles, we'll get some useful tools but I'm pretty sure we will experience another – severe – AI winter.
If we had some optimistic but also realistic discussions on their limitations, I'd be less skeptical. As it is, we are talking about 'revolution', and developers being out of jobs, and superintelligence and whatnot. That's not the level the technology is at today and it is not clear we are going to do anything else other than get stuck in a local maxima.
If these systems showed understanding we would notice.
No one is denying that this form of intelligence is useful.
We just need more monkeys and it will be the same as a human brain.
More than once these tools fail at tasks a fifth grader could understand