Remember what life was like as a late teen or even early twenties if you were a JW at that time. You're friends were it. You went out on weekends during the week you name it all the time.
It was everything. As a young JW you have a built in social system. They pretty much have to welcome you in to some degree. In the real world friends take more work because they don't have to agree with you.
The solution I believe is time. Skillfully showing the blatant faults of the org in a systematic manner without emotion has worked for us, however there is still real drawn to what they know.
I trust that the real truth has hit their heart and that in time as life goes on, they go to college, find a mate and so on the reality that it is false will be inescapable as friends just aren't the priority anymore.
At least this is our experience so far!