Harry we as pilots voted to get rid of our pensions at Delta. At the time I was against it but as you can see from our quartly profits it was the right thing to do long term.
We lost some work rules but they are still the envy of the industry and our hourly rates are industry leading. No one at Delta voluntarily flies anywhere near 90 hours a month but with credit times some pilots get paid 90 hours.
To the best of my knowledge no one in the last 5 years has left Delta Airlines which the same can't be said for Emirates. We even took one pilot back who went to EK and wanted to come back to Delta.
I think you should compare other flag air carriers to each other.