There are more than 200 americans at EK. All types and backgrounds. Ex regional guys and I've met or flown with pilots from UAL, NWA, DAL, AWA, USAirways, Alaska, and AA. Plus quite a few charter/cargo outfits. It's really hard to generalize the group of 200.
I don't think anyone at EK is wishing ill will on the US industry. If you look at posts from EK pilots you will see them responding to the provocative and factually incorrect posts from General Lee. It's hard not to respond to constant doochebag comments.
That said it's a tough call for furloughed guys whether or not to go back. If you are making 150k in the right seat tax free or 200+ in the left mostly tax free it is a big lifestyle adjustment to go home and be poor on reserve. Not to mention all the other little perks. For an ex regional pilot who upgraded it's an even tougher decision to go back and start at the very bottom of 10,000 knowing that you won't see that kind of money or route structure for another 15-20 years.
But I've never flown with any American at EK that is wishing ill will on the US Industry. It's ridiculous to even suggest that. I think we all wish things were going much better so the decision to go home wouldn't be a hard one. No pilot moved to EK because they always wanted to live in Dubai. It's a pros and cons thing.