Working conditions, government support, blah, blah, blah...the fact is, Emirates (and Etihad & Qatar who are trying to take market share) have access to the real up and coming markets on this planet - China and India. The US companies have been merging and clamoring for the same basic group of customers, while Emirates has become "Indian airlines", shuttling people from the subcontinent around the world. Which companies from the US fly to India (the 2nd most populous country)? Answer: only United - they only go to Mumbai and Delhi...but thats like Lufthansa bragging they got America covered, with just JFK and LAX.
It's easy to lump the ME3 together, fact is, Qatar is a bunch of crazies and treat their pilots and FAs like crap. BUT the real threat for you guys (USA airline management) is Emirates. They sit in the middle of a gold rush, ready to grab market share wherever they can. for guys at majors they should sweat, their horse is the weakest in the race. If you are a pilot who is willing to take the best opportunity available, retire before 60, and be selfish...a middle east carrier may be your best option.
I was at a regional in the states and saw that companies (UA, DL, AA, US) make their money off of regional pilots working for crappy wages. If you are pro pilot and pro livable wage, there is no logic in you being against competition from the big scary foreign airlines. These companies employ many Americans and offer them a chance at career earnings that are only pipe dreams State-side.