No other human activity poses this level of danger. I do heed the warnings, but this comes across as detached hyperbole. See: global warming, nuclear weapon development, wealth inequality, war, technology dependence, etc. Also, this has nothing to do with LLMs or computers. Like all things, this is about humans.
Putting "wealth inequality" in the same bucket as nuclear weapons is just slop. The OP is talking about existential threats, not things that personally annoy you.
But just in case you haven't noticed, we live in a world where a ridiculously wealthy minority can derail whole countries by ther whims. Wealth concentrating on a single select few is an absolute disaster for the rest of us, because we lose power to them.