Trapped on the 380? I think not. Every guy I fly with is happy to be on that fleet. No exceptions.
There are some who are obviously disappointed by the company, but certainly not the aircraft and its destinations.
As for finding work elsewhere, those who chose to leave seem to have no trouble finding jobs instantly.
We all recognise the fact that perhaps the A380 won't be around in 20 years, but the 100 plus we have should keep us going for a decade or so. After that, we'll see.