Those wedgie seats, whatever they call them, those recliners, they're just not competitive anymore. The difference between those and a coach seat isn't that great to be able to warrant charging the amount. You need a little more space for a lie-flat, but not that much more.
One of the constraints on the U.S. business is the pilot shortage. There's not an abundance of pilots. There may be an abundance of cheap fuel and airplanes. There probably isn't an abundance of gates at popular airports, either.