OP - I read your post and knew exactly what you meant, you really didn't have to list examples to validate your post. It was also safe to assume that you did not mean the entire nursing profession. I am sure there is more going on than the examples you provided and quite frankly, who am I to say that your experience is lame or not real?!
Lateral violence, horizontal violence, nurse bullying or whatever anyone wants to call it, is extremely prevalent in nursing. The ANA recognizes it as a huge issue and there are thousands of nursing journal articles published on the subject. I have been to a few conferences regarding the issue. In fact, our capstone in my MSN program was "Nurse Bullying - How to Break the Cycle." This capstone topic was selected by my professor who was also employed by the ANA. So YEAH - it's a problem.
Jumping all over your post certainly isn't solving anything. I read a great quote recently.... "The biggest communication problem is we don't listen to understand.....we listen to reply"
Learn EVERYTHING you can and be the best nurse you can be. Believe me, once you are confident in your abilities, you will be affected less and less. Take your experiences and be the opposite, become a great mentor to co-workers and novice nurses - this is how you can start to break the cycle.
Don't quit nursing, quit toxic environments!