Cyril of Canada, your story is my story. We attempted to leave our church very quietly in peace, informing the pastors with whom we were friends of our intention. We merely stated our intent and were resolved not to enter into any discussions, ie, debates. The pastors put us under ‘church discipline’ (whatever that means besides public shaming) and we summarily lost all of our friends. What we endured was nothing to being faithful to God’s call.
I agree with the others; try not engage in any more dialogue than is necessary. I will be praying for you and your family as you remove yourself from Protestantism and that they allow you to move on in peace and love.