While you may think you can pop enough chaff in an interview so they don't notice that attitude, that's an automatic thumbs down if they get a sniff of that. Every airline, all day, every day. Maybe you're good enough to pull it off, but most aren't. Most interviews you'll be sitting across the table with well over half a century of experience looking specifically for that attitude.

I highly suggest that if you want to move on to a mainline…any mainline…or even most so called LCC's even, that you let go of that angst and focus on the optimistic sides of the opportunities ahead, for your sake. YMMV.