Am not Christian, just for starters. Nevertheless, to demand certainty, when uncertainty but respect is offered, seems cruel and unusual, to me.
My faith in the Creator is an add mixture of various philosophies and religions. It matters not to me if anyone agrees or not, but that they accept my thoughts as my thoughts, just as theirs are accepted and respected by me.
It seems a most uncharitable action, especially from a reputed Christian source.
May you find tolerance in abundance, and here and there the wonder that is acceptance, if not agreement.