If the annual turnover rate at your job is over 100% and people are often upset about how they are treated?

The average person at my place of employment stays employed for less than a year. At the end of each year there are more terminations than average employee positions. (eg. 60 people quit in a year and there are only 50 employee positions in the department). So people are constantly being re-hired to replace the losses. In one year a position might be replaced 2 or 3 times. Upper management is continually expressing their concerns about the organizations working conditions and these concerns are shared with line staff who also agree sometimes even more so. The one or two at the very top attempt to stiffle dissent.

So I'm wondering is this just something common in the workplace or should I quit like many others I've worked with have done and try to find something better?

Also these are professional salaried positions. They are not in fast food or temporary jobs like that.

Well, I suspect the problem begins at the very top. Management has created a culture in which the employees do not feel valued. If these are professional positions I am doubly amazed that the problem hasn't been seriously addressed. Even if senior management doesn't care about the employees, they should be looking at the bottom line. It costs a small fortune to recruit and train a new employee, not to mention that experienced employees are worth the extra pay because they work faster and more efficiently. When you have constant turnover, the error rate increases and customer service/relations degrades.

The top managers can't see what the problem is because they don't understand that they are the problem. Your company desperately needs an outside consultant to come in and find out the problems and let the senior managers know what's going on and how it's impacting the organization. I remember reading about a consultant who came into a bank where employee morale was very low. The manager was absolutely amazed when the consultant told him the problem was that he was having an affair with one of the employees! He was clueless that 1) this was a form of sexual harassment of the entire staff, and 2) that is might be unethical and illegal. Obviously none of the employees were able to tell the manager themselves and it took a consultant to tell him.

If you don't feel that you can change the environment and you are unhappy in the job, then you should look elsewhere.

If you're happy with your employment stay. If not find another job first then quit. It's better looks better to prospective employers if you have a job.

Management doesn't care about people they are easily replaced.
If you last 2 years there you will be one of the oldest employees and may make manager. If you aren't unhappy and can talk to your manager you may do great. Never grip with the grippers, try to see the company side and smooth the situations.
For example if you are a server in a restaurant and the grippers are gripping about the hours they are given. Say I know it would be nice to have a steady shift but the restaurant needs to cover all of them and rotating us lets them have good help on all shifts and not always the same people getting the good shifts. Management can see you aren't at trouble maker and are good for moral, when the others all leave and they need someone to train replacements and manage them you could be it.
If they actually treat you badly leave.