Why would God destroy all the nations to where he sent the Jews? It is not the nations fault that the Jews were scattered because they disobeyed God. Why will God destroy those nations?
This goes all the way back to Genesis 12:3 where God promised Abraham a great nation and said of Him and His descendants, “I will bless those who bless you and whoever curses you I will curse.”
It is true that it was the fault of the Jewish people that they were scattered. Even so, God always expected the nations to treat His people fairly, and when they didn’t it angered Him. For example, He sent them to Babylon and then promised to destroy Babylon for mistreating them (Jeremiah 25:12). He even warned the Babylonians in advance that this would happen. 150 years before the fact, He said,
“I was angry with my people and desecrated my inheritance; I gave them into your hand, and you showed them no mercy. Even on the aged you laid a very heavy yoke” (Isaiah 47:6).
The nations to which the Jews were scattered invariably mistreated them. Even the US has discriminated against the Jewish people and once refused to accept a ship with 900 people escaping from Hitler even though they had no other place to go. The ship was called the S.S. St. Louis and finally went back to Europe where the passengers were scattered among several European countries.