vs, when I checked out as an F/O on the 767 life was great. I was in the front seat, heaps of flying, great aircraft, etc. It took a couple of years before the gloss of 9-10 days off per month at home wore off but wear off it did. So sure, most of the warnings are coming from the outside- from people who have done the type of flying that J* will be doing and have done it on conditions that were suited to it and can see the massive pot hole that J* pilots are going to find themselves in within a couple of years.
It's at that time that perhaps they won't be as 'happy with their lot' as they are currently. The light at the end of the tunnel may well be an on coming train.