"Germany is a nation-state and always has been"
Do you think the systematic repression of Polish people during the German Empire, which was seen as necessary to achieve the 19th century ideal of a nation-state, was appropriate?
Because you make it sound like Germanisation was a good thing, as otherwise it wouldn't have been a nation-state.
Quoting https://en.wikipedia.org/wiki/Germanisation_of_Poles_during_...
> Within Bismarck's Kulturkampf policy, the Poles were purposefully presented as "foes of the empire" (German: Reichsfeinde).[7] Bismarck himself privately believed that the only solution to Polish Question was the extermination of Poles.[8] As the Prussian authorities suppressed Catholic services in Polish by Polish priests, the Poles had to rely on German Catholic priests. Later, in 1885, the Prussian Settlement Commission was set up from the national government's funds with a mission to buy land from Polish owners and distribute it among German colonists.
If that's what needed for a nation-state, I reject it as a worthy goal to achieve or use as a basis for identity, just like I reject my country's racist and expansionist history of exploiting African slaves and Native Americans as being something to re-attain.
(Apropos: "Frederick the Great ... likened the newly conquered West Prussia to a Prussian Canada and its inhabitants (which were German and Polish) to the Iroquois, who he saw as equally uncivilised.")