Enough is enough, PIMOs do it so as not to lose their family and friends, which is still possible for some. I faded nearly 10 years ago and still have contact with my parents and some very limited conversations with one or two friends; its not much but its still that. This is only possible as I didn’t give any details as to why I was leaving other than a generic expression: I no longer agree with the theology (aka: teachings), the official doctrine thought by the organization no longer aligns with my values.
If they pressed me for more details, I’d go with:
Think of something you don’t agree with in your religion; could you freely talk about the matter with people in your congregation without fear of any reprisals? If not, why would discussing an insignificant matter cause division in the congregation? If it is not trivial, should you really ignore your disagreement?