You wrote:
“Don’t start. The only ones that are ‘yours’ are the ones you build after the Unia. Do we get back all of the ones that were ours when the Unia was formed, and taken from us by the Principality of Poland?”
1) Those built before Brest remained in the hands of their own bishops. The bishops reconciled with the Church. You might be able to make a case that the buildings belong to the Russian or Ukrainian orthodox who did not reconcile. But only maybe.
2) Whatever was done by Poland is not my problem since I am not Polish, neither is the Church.
“It was a beautiful gesture don’t ruin it.”
Let’s do better than “not ruining it”. Let’s see the Orthodox reciprocate? Wouldn’t that be nice? They’ve never done much of ANYTHING yet.
“(Though I must confess I’ve been surprised at the waning of the cult of relics in the Latin church. Our local bishop has been given relics fairly regularly by Latin churches that don’t want, not as a public gesture of unity or good will, but just because some Latin diocesan doesn’t know what to do with them any more.”
Yep, pretty sad. A friend of mine collected relics from a convent that threw them out. The custodian just couldn’t let them go like that. He collected them and gave them to my friend. These are FIRST CLASS relics too. Sad.
“And yes, it matters: the cult of relics is an affirmation of classical Christian anthropology and the doctrine of the General Resurrection. Should it die out in the Latin church that would be a new impediment to reunion.)”
Yes, it would be. It won’t happen, however. It is a logical impossibility.
Why don't you write your Pope and see what he has to say on the matter?