Moshe:
Now when it comes to picking the Jews as his covenant people, G-d really did fail to put up the safety railing and the Jews fell off the roof many times, but then God had to know that would happen,- he is omniscient, right?
My rabbi in Kansas City had an interesting opinion about the diaspora. He said that we are not to mourn because it is something that has helped the Jews to survive and influence other cultures.