[Elmo]

I do not think they were for various reasons.

Firstly, it lead to the Sundering of the Elves. Elves who had together the strong bonds of kith and kin were separated in this life and the next simply because some did not trust a strange horseman who came bursting in with tales of some wondrous land thousands of leagues away. Of course there were other instances of this Sundering caused by the summons, like the separation of the brothers Elwe and Olwe caused by a spell put on by one of the Valar-kind in order to ensnare her mate.

Second, it led to all the sorrows of the War of the Jewels in which countless Elves, Men and Dwarves were brutally slaughtered. The Undying Lands caused the Elves to be arrogant and warmongering. And the direct cause of the war - the Silmarils - were forged by the Elves in those lands.

Third, I agree with Nimrodel, the Summoning caused the natural way of the Elves to be disrupted. The Elves were meant to wander and sing under starlight, not to live in stone houses and mine for gems. This disruption of the natural order might be the underlying causes of all the Elves' sorrow after the Sundering. Also how much heartache was caused to the Elves throughout the ages by the sea longing caused by the Summoning -they who loved the lands of Middle Earth so much?

Fourth, it lead to the abandonment of Middle Earth of its fairest inhabitants. These inhabitants could have done much to heal the land of the hurts caused by Melkor yet the land and its remaining folk were left to suffer.

Lastly but not least it was unfair. The main reason for the Elves' Summoning was to protect them from the dangers of the starlit dusk. This protection was not extended to Men or Dwarves. Why did this protection not extend to Men or Dwarves? Was it simply that Elves were the ones that the Valar cared about most? Manwe was said to love the Vanyar the most as they were the most fair of Elves. Logically that must mean he must care about Men and Dwarves the least as they were far less fair than even the ugliest Elf.

It is mentioned somewhere (I think) that when the Valar interfere directly in the affairs of Elves and Men it all turns to evil. The creation of Numenor was another example of this meddling. I think the Summoning of the Elves is a big example of this interference and therefore was the wrong thing to do.