Don't stay in a bad church.
Regardless of what sort it is, do not stay in a church that is going nowhere and taking no one! Year after year, decade after decade. Just let the dead bury the dead. And have no fellowship with darkness.
Yes, this can sometimes be a hard choice because our first instinct is to want to see things turned around, improved, and fixed.
Here is a story of a couple who left their church years ago and started one themselves. Their original church, back in the 60's, did not allow blacks to join. So, off they went with their young friend.
The young man's name who wasn't allowed membership was Tony Evans. You may have heard of him as Dr. Tony Evans.