Part 1

Thank you. I appreciate and concur totally with your first three sentences, although we probably disagree at depth about the nature of "truth." Still dialogue must be based on mutual respect in the pursuit of truth.

RE: "Why is good will between Catholics and dying liberal denominations like the Episcopalians or the Lund Lutherans good but good will between Catholics and Evangelicals bad."

First, we have to distinguish E1 and E2 more carefully. 

E1 is based entirely on fostering good will between entities with a powerful shared history of violent enmity. As an ideology it is not against anyone or anything, except historical misunderstandings and hateful myths. At the same time, it is in no way relativistic since acknowledging and mutually exploring fundamental theological differences is a very strong part of the practice of E1. Also E1 is formally Church to Church, at all levels; with formal gestures at the top playing an especially important role.