Earlier quoted context omitted.
It is not "coincidence" that Chinese are born in China and Polish in Poland. It is their inheritance, their birthright, the fruit of their ancestors' labors. To tear out all connection to one's history by calling it "coincidence" is, frankly, sickening.
I wonder if someone born in a war torn region with few resources and no organized society would have the same opinion. It is just a statement of fact that the geographic location a person is born is coincidence.
The answer is: yes, people returned to many places after they were totally demolished, suffered from systematic resource drainage and were background of inhumane genocides. TLDR: massive scale war is nothing new.
Sadly