Well, these were people that did not want to go back to the Soviet Union.
And Germany was in bad shape recovering from WW-II.
If you've read what happened to the people that did return to the Soviet Union they did the right thing. Many of those that returned wound up in Siberia and died there. My father would have been killed.
Alex
"There is a cult of ignorance in the United States, and there has always been. The strain of anti-intellectualism has been a constant thread winding its way through our political and cultural life, nurtured by the false notion that democracy means that "my ignorance is just as good as your knowledge."
-- Isaac Asimov