And the Jim Crow inspiration for the Nazis' racial laws was made in USA: https://www.theatlantic.com/magazine/archive/2017/11/what-america-taught-the-nazis/540630/
And they were defeated in the west by a segregated army and air force.
The Russian empire's racial hierarchies are far more fluid and not codified. Russians and rules don't relate very well. Kamil Galeev, the Wilson Center's exiled Kazakh analyst, has some long threads on this: https://twitter.com/kamilkazani/status/1506479306251202563
Thanks for reading.