While I respect the fact that each person can and should make their own decision based on their own needs.
The concern I have with staying to "support" others is this.
We all seem to agree that this religion is a high control group and that there are real dangers associated with groupthink.
This is one of them.
Generally speaking when people are in a group, individual responsibiltiy for action becomes diffused and therefore weakened.
Most in the group will assume that if no one else is complaining or walking out or saying "to hell with this"
then everyone else must be ok with it and that there is no real problem. Human nature.
So each time you sit through a meeting with no apparent problem with it you are actually contributing to this illusion of ok-ness.
Others in the hall look over at you and think
"oh bro/sis so-and-so is here and they seem fine with this so everything must be fine,
and wow they have even brought their hus/wife along that's great"
Possibly an oversimplification of the group-ok effect but there you have it.
Face it, no one wants to be the first to leave a theatre, but if someone else does it can start a chain reaction.