I think this is a false dichotomy and an over-simplistic view of the game industry. Remember, there are far more indie games than AAA, so of course they’re going to earn less, there are more to choose from. Plus, if an indie game does too well, it often stops being indie. Most of the money for AAA games is from the same few people paying thousands of dollars in many small purchases too.
Anecdotally, most people’s favourite games are, or at least started off as indie games. However, most people’s least favourite are going to be indie as well. I think the thing with indie games is that they vary a lot, often exploring things that many publishers simply aren’t willing to. This allows them to find and fill a niche perfectly that a publisher can never fill. The main thing is that people see this and start making their own indie games, leading to market saturation pretty quickly.
Plus, the vast majority of people still don’t have 4K monitors. It may be the future, but you seem to think that’s where we are now when we just aren’t.
The topic is about low end indie games specifically. Thus games, which started as indie, like Valheim or No Man’s Sky don’t fit the bill. The point is that no one gives a shit about low end games apart from a few niche fans. Everyone likes high end looking games with loads of stuff to do in them.