If I had declared bankruptcy multiple times and had been allowed to escape billions in my pension debt, I might not actually have a lot of room to cast stones at others. That's why this is silly: it's the pot calling the kettle black, and the pot is doing pretty darn well. The United States government has propped up US airlines at key times, so this whole spat just turns into a protectionist argument. The answer is very different when the question becomes "should we protect a few mediocre airlines from international competition in a way that will cause US consumers to pay more?"