The Maginot line worked real well too

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Protectionism = the strategy of the foolish.
If you would stop buying into the ALPA garbage on these topics and actually go out in the world to see what is happening you might then realize that the U.S. airline management is, once again, being catastrophically stupid.
There are 1 billion people in all of the Americas. One billion people in all of Europe, including Eastern Europe and Russia. This while there are 4 billion people in Asia and another 1 billion in Africa. At present population growth rates Asia will add another 1 billion people and Africa close to 2 billion by the year 2100. The population of Europe and North America is likely to decline in that time. The populace of Asia and Africa is becoming more affluent and able to afford air travel. So where is the growth in air travel going to be?
Traditionally North America and western Europe had the major air travel markets. That dynamic has been changing rapidly over the last 20 years. The growth of the ME3 and others is, in large part, directly attributable to those changing dynamics and their perfect geographical position in the world to serve the new markets.
Emirates, Etihad, and Qatar serve on average only 10 cities in the USA. British Airways serves 25, Lufthansa and Air France right up there near 20 also. Korean has two non-stops a day ATL-ICN. DAL has zero.
Interjet and Volaris in Mexico pay A320 captains $4500/month. Avianca pay a 787 captain around $7000/month. Avianca/TACA and Lan/TAM are becoming huge airline groups. They both have ambitious plans for expansion into the USA and Europe with modern efficient airliners. Yet nobody seems to be sounding a warning call on them. They are paying half of what Norwegian pay, yet somehow they are not a threat

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I would advise not enabling your management by supporting their "destined to fail strategy of protectionism". Make them open their eyes and see what revenue potential is out there in the world. Go after the revenue. That is what will protect your future, not trying to fence off a declining percentage of the world air travel market.
Typhoonpilot