The "Shepherd" book says that joining a non-neutral organization is a DF'ing offense (see below)
So you CAN get DF'ed for joining GreenPeace, the UN, or similar. The boys club in Brooklyn, however, gets to make up their own rules because they think they are appointed by God. They take this as permission to PLAY God and they do so, ruining the lives of thousands of "little ones". Truly Pharisaical. A double standard.
Matthew 23:13 applies to them in full
The fact that they never apologize demonstrates their spiritual arrogance.
Page 112 of the 2017 version