If I may offer some advise, the fore front policy from this religion is to own you and control you, in a sense the master does not like his slaves wandering off to serve
other masters, they have goaded you in to their little posy by offering not dieing and living in a paradise, once they put their brand on you, you become one of their possessions.
You should realize that other religious cults gather their followers in a very similar way, with very similar tactics. If they think they have the ordained power to bounce you out I say let them.
Another thing you might mention to them tell them that the kingdom hall didn't have enough exercise equipment so thats why you joined the YMCA.......good luck