I see the "Where else" argument from many JWs. This is something that the Watchtower uses as a way to keep people in. They demonize all other religions, while basically saying, "we are so much better than them" That kind of thinking kept me stuck for years, hating my life but afraid to leave.
There are churches that don't teach these things, although not common. I have investigated the Church of Christ, congregational, my husband was raised in it and my mother in law attends. They actually have no doctrine. It's more about Christian fellowship and support, and you don't even have to have a strong belief in God to be a member. It was hard to get my head around it really, but I have attended a few times and was impressed. It was a very loving, accepting congregation.
I suspect if you look around you could find a group of Christians where you would be comfortable. The WTBTS creates the kind of black or white thinking that makes everything so all or nothing. If a church was wrong on one doctrine, you are supposed to reject it completely, yet if the Watchtower is wrong, you are supposed to "wait on Jehovah", or "we are just imperfect men" or "the light is getting brighter". What a double standard! At least in the other Churches there will not be doctrine flip flops and crazy predictions.