Everybody but the wealthy shops for airline tickets with price as their only criterion. Airlines are rational agents who operate in a famously competitive and low-margin business, so they respond to this demand-- indeed, they don't have any choice.

I have a lot of complaints about products and services that I can chalk up to various market failures or sinister actors, but poor airline experience is entirely on us, the consumer. Our revealed preference is for the lowest possible ticket price all else be damned.

I have racked up some air miles in my time. I am not wealthy, and price is a major criterion, but there are some airlines and airports I avoid at nearly all costs. I wish there were enough like me to put pressure on airlines to do better, but alas it's a losing battle it seems.

This is called a race to the bottom.

The safety, even on the budget airlines is amazing. You wonder though, if they sold seats for $50, to get to the other side of the world, but you had a 10% chance of dying, how many people would take it.