As much as many of us would love to wake up one day to read headlines about some shock collapse of the WTS we have to accept that it simply isn't going to happen.
I don't believe the vast majority of JWs really know what the current doctrines are, they are largely unimportant to people's "belief" in the current thing. It's how they feel about being a member, being part of it all, and the morals and lifestyle they promote.
Remember that they fill a niche, so even if the WTS was magically removed, something else would evolve to fill the position that they occupy and to appeal to those members.
This is why it's a waste of our time, energy and money to make destroying the WTS our goal.
But what isn't a waste is to help those who do want to leave to do so successfully and with as little negative impact on their life as possible.