Demand a Downgrade from ios7

I and many other people are very disapointed with ios7 it's too diffrent it changed my camera, is using up all my battery, has messed up all the controls, and the colors hurts my eyes . Ive tried countless times to downgrade but once apple realeases a new softwear you cant go back. Im experincing many problems with this new softwear but their is nothing I can do. very frustrating!