The Germans need to look at their last two hundred years.
“Das Tausend-Jahre Reich” has been sliced, diced, flaked & formed quite a few times from Napoleon through Stalin.
The present borders of their “Heimat” are mostly what foreign conquerors decided they would be. Koenigsburg & Danzig are likely to remain Kaliningrad & Gdansk for quite some time.
The land of Israel is given unto G-d’s people for all time.
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The land of Israel is given unto G-d’s people for all time.
You may want to review the last 2000 years of history yourself.