"Loyalists" might be a better focus.
he 100% believer, or even high percentage believer, can be shown that their beliefs are rubbish, if they open their closed minds, and they will leave, if it was only that they thought it was "the truth" that keeps them in. The loyal follower, as with any Cult, will stay until the end.
That's an interesting perspective I never thought of.
So with that in mind we have three groups associated with the organization
Loyalists
Believers
And PIMOs
Leaving out children under 18 who have no choice but to stay in until they are old enough to leave.
PIMOs who are adults and know it's not the truth but still attend for whatever reason---Would they be consider Loyalists?? Since they still attend and support to a small extent? Does not matter how small or minimal the support is, -------it's still support for the WT organization.