They aren't Christian. They teach the OPPOSITE of what Christ is- and don't even believe their OWN 'gospel'.
Well there's a true bullshit story if there ever was one, sorry to break that imaginary image of the other Christian based faiths that the WTS imposes but the people there do believe in Christ and his teaching an act accordingly, much more than the deluded brainwashed servants of the Watchtower Publishing house.