That was probably a rhetorical question, but just-in-case, the Nazis absolutely started with deportations many years before the gas chambers.

https://en.wikipedia.org/wiki/World_War_II_evacuation_and_ex...

They even plotted to forcibly deport victims to fenced-in zones on an island which they would seize from another country, putting it outside their laws at home.

Except it wasn't Guantanamo Bay in Cuba, but:

https://en.wikipedia.org/wiki/Madagascar_Plan