Stick with it!
I get your sentiment. I understand where you're coming from. I felt exactly the same way.
I never quit though, because, at the core of my being I know that: good or bad leadership, collectively we will always do better as a unified body than as individuals fighting against the management alone.
Stick it out, see how this new committee takes on the job. Let them know what you want, let them know how you want to see things go. The sqeaky oil gets the grease, and if the committee knows what it is that the membership body is willing to fight for, then it will make their job so much easier going forward.
Don't give up. Never give up!