@Escoffier @CharlesSynyard @Omega_Variant @matty @synapsid @Frondeur @MeBigbrain @reloadedAK Personally where I'd draw the line is if the religious discussion your introducing to me violates the Sanctity of the Gospel (Faith Alone, For the Whole World) and the nature of God (Godhead/Trinity, Divinity of Jesus Christ, Personhood of the Holy Ghost). I don't personally don't entertain discussions with people who are staunchly standing in that.
That being said Lord knows I'm not completely perfect, being raised Baptist I do have a strong anti Catholic bias that makes me speak rather strongly on trivial tiffs.