Mind you... I am not a Mormon, but I have known many many Mormons who have left their church and not one of them have told me they were threatened or harassed. Pretty much all of them are in good graces with their families,see no difference from the lapsed Catholics I know in similar situation.
And I expect many of those exited without having "troubles".
But I am here to tell you there are untold thousands that have had very different stories than you are telling.
fwiw-