Even if you leave out the government-owned and government-controlled airlines, there have been a lot of massive bankruptcies associated with the airlines even if you just limit the field to the US. Indeed, large bankruptcies were almost the norm. Even relatively recently, the statement that commercial aviation had posted net losses through its entire history was indisputably true. It may or may not be true given recent consolidation and considerable profitability.

I doubt the same "never made money" statements could be made about most industries.