I have lost count how many times I have heard this!
"I don't care if it's teachings are false, I'd never leave because it's the best way of life"
When a JW is trapped into a doctrinal corner, this is the typical reasoning to justify allegiance to the organization.
In the above moving puzzle, if you stare at any one dot for several seconds, the other dots will randomly disappear and reappear.
There is a function of the brain which makes things "go away". I choose to think of this function as similar to what happens
to Jehovah's Witnesses when discordant information about the WTS creeps in.
Making the disturbing element vanish maintains the pattern-as-a-whole.
ONCE YOU TAKE COMFORT in things AS THEY ARE, your brain can take an disturbance and make it go away.
Cognitive dissonance is the anti-body mechanism of thought control.
I think the best response would be "How do you know it's the best?" Most JWs, especially the born-ins, can't honestly make such an assertion, because they've never lived any other way. Even those who converted have sampled very little of what life has to offer.