The JW's have always been a tribe.......... they called themselves "the friends" international bible students who had a particular fondness for Russell this 'friends' thingy started back in Russell's day. He depended on 'the friends' for lodging, food and providing a speaking hall. Those that bought into his ideas helped out when he was on the road.
They provided the transition that allowed the Society to become a religion or one might say a tribe. Of course it took to 1940 to formalize the religion. Rutherford screwed up everything........ what a tool..
The friends were continued to be called by that name and it is still used. The meaning is similar to how the Mafia greets some people.
From the movie Donny Brisco....... A 'made man' tells his new recruit. "If I tell them 'your a friend' they know your not a member. If I tell them your our friend they know your a member."
Hatred is a part of those JWs who came to maturity in the 1950's. Held strong in the 1960's, fought for 1975 then in 1980 they changed gears and showed their real hatred for those who DA and dropped out....... the friends held strong to that name .....they saw the real 'truth' and they were assured they had a relationship with Jehovah, funny not so much with Jesus, but it gets crowded when your tribe has versions of the truth.
Being a part of the only true religion can be a burden.
Well there is one thing we can understand with JW tribalism is that hating........ is their pathway to everlasting life.