> a problem of unbounded complexity
A loosely used term here. Especially in terms of it's practical meaning, not theoretical. In this sense, both Dota and Starcraft II were also problems of unbounded complexity, and Alphastar is doing pretty good there.
> nothing short of AGI will get us close to the current below-average human driver
What are you basing this assumption on? Most prominent scientists in this field don't seem to be agreeing with it. It is by no means self-evident or backed by any substantial direct evidence.
More generally, I just can't understand this attitude you have. How does your thinking process work here, what is that attitude good for and where is it coming from?
Here we have world's brightest people trying to tackle a very important and useful problem, it's hard to know when it will be tackled, but it seems it will be eventually. Some people are disagreeing about when it will happen (perhaps you think it will not be for a 100 years), but at least they are doing something and are making progress. Investors similarly know that it is a hard problem and no one knows when it will be done, but they want to give their money for this problem. And here you are just complaining about the whole situation? What would you have all these actors do, just do nothing? Stop making these cars? Stop trying to solve the problem, stop bringing the progress forward? Or what, working on it in secret and never telling anyone so that god forbid any one person would ever happen to see their presentation and build a faulty (a too optimistic) view on the current state of the technology? Where is your negativity and sarcasm coming from?