It's easier to not understand the risks. It takes extra effort to understand AI safety problems and more effort again to solve them. People who blow off AI safety are being blithe and not engaging the arguments.
Humans generally have the same alignment constraints, we need food, shelter, air, water, etc. We can all agree on that. But if you give 10 humans $1 and 1 human $1 billion dollars the human with a billion dollars can quickly ignore and forget about the needs of those with $1. The human alignment problem is not solved!
With the potential for all knowing information ingestors with a realtime input system that far outstrips human capabilities, the delta of the problem just becomes worse, particularly because the AI goals are much more likely to be aligned with the billionaires ideas.
Eventually smarter than human AIs will exist and we currently do not have real interperability into dumber than human AIs