Based on what you wrote, it seems like your only complaint of working in this particular OR is the culture, not the job itself. People either love the OR and stay forever, or hate it. The OR can be a tough area. To answer your question, yes there absolutely is a different between union and non union. I have worked in both and its a night and day difference . Now, the non-union ORs aren't necessarily all peaches and cream but there is way more teamwork and support going on then in the union environment! I also hated being in a "toxic" culture full of gossip, bullying and backstabbing. It is possible to find an OR without all that. Keep your head up, have some thick skin and be assertive. Good luck!