Earlier quoted context omitted.
American passengers, assisted by SV technology, have been encouraged to be and demonstrated that they are totally indifferent to anything but price and will book with whichever carrier is least expensive. So don't complain that in order to stay in business, airlines are cutting costs to the bone and not carrying extra capacity anywhere that it's not essential.
You're not cutting costs by colluding with other airlines, you're keeping prices artificially high by ensuring you don't undercut each other.
But consumers are probably getting better pricing thanks to various platforms (Google Flights, Skyscanner, Flighthub, Expedia, etc.).
An up-start airline cutting fares can become ramen-profitable much quicker than ever before.
Signed, a Canadian that salivates at the pricing the American consumers can get for domestic flights.