text: Non-changing (rigid) religions are also shrinking , include those with male only clergy/leaders/pastors:  EOC, Mormons, Southern Baptists.  Eastern Orthodox Churches are shrinking in membership in the US., have one of the lowest rates of retention across Christian and non-Christian denominations, with only 53% of adults who were raised in the Orthodox Church still identify themselves as Orthodox Christians.  Compare that to Hindus (80%), Jewish (75%), Mormon (64%) and Catholic (59%).   The conservative Southern Baptist Church  have recorded a loss of membership for each of the last 9 years and lost  200,000 adult members between 2013 and 2015.  15% of Amish leave their childhood church as adults.  Rigidity is either not enough or is rejected by many.   Half of the 'nones' in the US left their childhood religion over lack of belief, and 20% cited dislike of organized religion in a recent Pew survey.  Rigidity or male-only priests/pastors apparently doesn't prevent shrinkage.