The best thing anyone can do to help our dear Jehovah's Witness friends and the organization is to love them. That doesn't mean we can't expose what's hidden in the darkness but everything needs to be done out of love. That's the best way to attract respect and positive changes for the better.
Jesus was unconditionally loving. He loved his neighbors (regardless of beliefs) and enemies. He even blessed his executioners. He is the only path to eternal life  , - no religion can save us.
Yes, Jesus exposed the self righteousness of the Pharisees just like former Witnesses expose unloving practices such as judicial committees, disfellowshipping, and shunning, but there's no evidence that Jesus hated the Pharisees. He just disagreed and corrected them. Jesus was a perfect example of God's love, forgiveness, and patience.
When we show compassion for Jehovah's Witnesses and the leaders of the organization, we become examples of the love Jesus had. Let's attract Jehovah's Witnesses and the organization with our love for them.