Interesting take. However, it misses one key point, as Ms. Merkel apparently did, as well. That is, the Nazis understood perfectly well that a stateless people were a rightless people. There immediate goal upon occupying any eastern European country was to destroy the political class, because without a state, the only law was murder. If you are a citizen of no country, you have no means of redress, essentially.
Human rights belong to all humans who haven't committed a crime to lose them.
No discussion to be had here. Refugees have human rights by default.
They lack someone to protect those rights, the bond between people that is society, or a nation as you mention in your post, but that doesn't change that I, and all other people, should hold themselves to the moral standard of ensuring that the rights of all humans are respected.