I am new here but I will add my two cents, I dont think the op meant to judge anyone. Many other professions are stressful and underpaid, police officers, teachers etc.
I have ran across a few nurses in my lifetime as a patient that put the profession to shame, some are so rude, wont bother to even answer me when I ask a question etc. However, there are always people like that in every profession. I do agree that you can only have an excuse for a bad attitude for so long, if you are that miserable switch jobs or do something else. Again, that goes for every profession though not just nursing. And if that isnt you, the op's opinion shouldnt bother you :)