cantleave;
There is no such mass exodus because of 2 big reasons and here is my theory;
1)The shunning policy. The real threat of losing immediate family and friends who one may have had for 25 or 30 years.
2)Mind control. Imagine being told you've been in the ''truth'' for 40,50 even 60 years. No matter what a person is told they just want to believe what they want no matter what. That's how hardened a person can become. That they just can't be told something otherwise.