aeropix, Some nice words of justification. It depends mainly on your age. 10 years or less until retirement, probably a fair choice to stay. Where is your protection from one bad go-around or the like. Protection from perceived "insult" of the protected class. Just notice how they use "FOQA" data here.
Just some facts, Delta...captain at 18 months on a regular roster (ATL). Southwest....long upgrade but hiring 59 year olds, UPS....see above, United....almost half of the seniority retiring over the next five years, AA....no synergy from the merger, but with Airways pilots retiring at a rapid rate. Alaska....very senior list, even with the VA merger/acquisition. Just some data of the Legacy/Major airlines.
My point is, if the US is your base or have the right to work there, there has been never a better time for hiring since the '60s. There are a number of reasons to remain here, but IMHO the state of airline hiring and being on the bottom of a seniority list in the US is not a reason to stay.
EK has lost pilots to Delta, United, UPS, Southwest, Alaska, JetBlue within the last year, just to name those I'm sure of.