Good day for Germany to claim our land.
Genetic evidence isn't on your side.
East Germany belongs to Slavs
There is no such thing as "genetic evidence". 15 million Germans were dislodged after the war, so that´s the legitimate way to claim someone else´s land? Germany has the right to the borders of 1938 according to international law. The right doesn´t vanish just because German politicians refuse to use it. Most German parties advertised with the "entire Germany", though:
You see, this soil is German and will be claimed.
The Polish government elected by the people the Polish government in exile was against the border shift West.
Poland actually lost more territory than it gained post WW2.
Besides, You are aware that the German beginnings of Gdansk were in the 1300's when they came as "Friends" invited into Poland, when the Teutonic Germans did the Gdansk Massacre, killing thousands of Poles, and destroying the original city of Gdansk, and promptly bringing in German settlers.
None the less, Poles held onto Gdansk largely until 1793, which Germans stole from Poland in 1793 in the Partitions which the German Prussians betrayed the 1790 friendship pact they had with Poland, simply because they didn't like Poland's May 3rd Constitution.
Throughout most of history Gdansk was actually under Polish control.