One could argue that most of the problems that happen at pot luck suppers have to do with the food we bring. Thus, if we all showed up without food, we would have no food problems at our pot luck supper. Ignoring our doctrines (temporarily, for the sake of this dialogue setting) is like that.
- Some religious people believe that doctrines - everybody’s doctrines - are person-specific. Chocolate is MY best desert, but it isn’t THE best desert, for humanity. Jean is MY best wife, but your own spouse is just as good - for you. The doctrine of the Trinity may help many understand God. Some totally different analogy might work better for someone else. Dogmas are useful only as analogies, or as “bridges” to spirituality, and thus, God. Evangelism means me helping you feel fulfilled in your own bridge to God and others, not to spread mine. Spirituality is good in itself.
- Others believe there are good and evil spirits, good and evil spirituality; some doctrines reflect absolute realities of true/false, good/evil. That doesn’t mean we have perfect information about truths but we know some doctrines have much more truth than others. Some decisions are personal - who if anyone should I marry? - other standards are universal - Marriage is between one man and one woman, indissoluble.
Jesus was very much in # 2. Dogma, spiritual warfare, evangelism (“Go forth, baptize all nations!”) were all there at the start, not added by the Church. In your posts, you are asking people to essentially assume position #1, rejecting position #2, without your proving that #1 is truer. That’s like a Christian in dialogue with a Jew, and asking them to concede (just for the weekend) the Gospel of Mathew is true. Asking me to go for a weekend dialogue under the Baha’i standard - something similar to #1 - would be conceding your view before the dialogue even starts.
Take a look at G K Chesterton’s books “Orthodoxy” or “The Everlasting Man”. Most Christians haven’t read them but “Orthodoxy” especially sums up, explicitly, the paradigm that traditional Christians and many others are, implicitly, responding to. Even for purposes of refuting it, it’s worth a read.