[Man-of-the-Wold]

This all seems a bit silly of a discussion.

As the UT quote rightly shows Celeborn had an understandable grudge from the part that the Nogrodrim played in the destruction Doriath. That is clearly the greatest of calamities between the Drawves and Elves, since their they killed many, including Thingol and later Mablung unjustly.

But among the Wise, they would recognize that the Dwarves involved were somewhat excused anyway, because Thingol bears some blame for what happened, and the curse on the Silmirils was as work. Nevertheless, Celeborn may be excused for not always remembering this or that not all of the Houses of the Dwarves were directly at fault.

Still, troubles between the Dwarves and the Elves ran much deeper. Before then, there had been conflict, and it seems that some of Thranduil's issues related to things that had happened during the Second and Third age with groups of Dwarves, perhaps Houses other than Durin's that had had mansions elsewhere in the Rhovanion. His halls were built by Dwarves, or stolen from.

I think in many ways Tolkien shows the enmity between Dwarves and Elves to be very much a reaction first and foremost to how different they were from one another. While we may praise Celebrimbor, Galadriel and Finrod for trying to bridge the gap, and appreciateing Dwarves for who they were.

But clearly Celeborn is as capable of error and stubborness in such matters as Thorin and his companions were. Both sides are guilty of greed. Where the Elves are less so the make up for with arrogance.