When I joined the JWs in the early 90s, their doctrines kinda made sense.
Then, one by one, their doctrines were shown up for what they were, i.e. nonsense.
The collapse of the USSR (no more king of the north/south), the dying off of the 1914 generation, etc.
The WTS had to make up a new load of crap for JWs to believe - overlapping generation, GB = faithful slave, blood fractions.
Who in their right minds would want to defend the latest bullshit?