There is a very high need for pilots overseas however let us analyze the situation.
Emirates has tons of capacity coming, with practically every widebody that Airbus and Boeing make. In a recent Wall Street Journal article a former US 330 pilot was interviewed about his generous salary and 5 star accomodations. But all the middle east carriers are in buy mode with som\ much cacpacity that everyone knows it is a matter of time till the huge overcapacity issue make the American airline industry troubles look like a hiccup.
Second and probably more ominous is that many of these regions are opening up flight schools to train their own citizens to be pilots. Soon pilots will be more plentiful and you can bet the pay will sufffer
Embry Riddle is not opening a campus in Qatar for nothing.
If you are up for the challenge then it would be exciting to go but don't fool yourself that the Golden Goose over there will forever prosper.
While I agree with most of your statement, you must look at some other aspects too:
A contract is just that, a contract. It's not intended to be forever. Make some money and move on to the next deal. I compare it to the electrician unions. On a seniority list, waiting in the cue for the next job. This isn't for everyone and just like the US airlines, there are crummy contracts and good contracts.
I can't recall exactly how Emirates works, but I think you get hired on a contract then are eligible for full time employment at the end of the contract. This was many moons ago, so it may have changed to just being hired on as an employee not a contract pilot. Either way, companies like Emirates offer gainful full time employment just like a US airline. Once again, living in Dubai isn't for everyone, me personally, I think the place is great, but my wife would never go for it.
As far as capacity is concerned, most of the foreign airlines route structures are based around global international service. The overcapacity in the US is primarily our domestic route structure. With the global economy, I would imagine there will always need to be a substantial amount of lift between cities like Singapore, Sydney, Tokyo, London, Paris, Dubai, Bombay, NYC, etc.
Personally, I could see some CRJ pilots at any of the regionals saying, I've had enough, do a contract for a year or two and then hope the US industry gets it together.