I'm a Wells Fargo account holder. I haven't closed my account. I don't really see a reason to. The other big banks are just as amoral, and they would screw their customers in a heartbeat if they thought they could get away with it. The main difference between Wells Fargo and other banks is that Wells Fargo got caught.
I wouldn't consider a local bank or a credit union, because I like being able to find a branch anywhere in the country, and small/local financial institutions are not exempt from bad behavior either. They also tend to have significantly inferior online banking and mobile apps.
Closing my account would just mean moving from one amoral giant bank to another.