You may want to use caution in the interpretation of the continual negativity that exists in the cockpit. That negativity is normal cockpit conversation that every airline has. After all, how many times can you talk about how great the day is? It's just much easier to talk negative about management, ALPA, age-60, Hillary, UndauntedFlyer, etc. So in actuality, that negativity can be overwhelming to where a pilot really feels that they are better off without their job at their airline. But in reality, without the continually negativity you're exposed to, the job is really quite OK. Yes it's not as great financially as it once was, and commuting is a living hell if you commute, but those situations can be dealt with if you want to.
So it’s really all about attitude. Positive thoughts and actions beget positive results, if only a positive life. Negative actions get negative results and certainly a life filled with fear, worry, doubt. And while you seem to be drinking the Union's cool-aid about how important the pilot’s are, including their standard excuses about the blame for the Summer of Hell, that action was an entirely negative action by the pilots and the union most specifically. And while that job-action certainly had nothing to do with 9/11, UAL was headed steeply in the wrong direction after that summer, a summer of negativism.
Don't listen to the losers who always complain, start looking at your glass as half-full instead of half-empty. You will enjoy your career much better.