why leave Hungary?

..my mother in law left Sopron in far western Hungary as a very young child in 1944 in a horse drawn wagon...they went into Germany....then left there after the war to come to America ..supposedly her father fought for the Axis--that's what he said...I did not know at that time about their displacement until after he died....
...my question is: did they probably leave because of the Russians coming in? or did the Germans want them for labor? my mother in law doesn't remember ....what is your opinion?
...I went to one of their Hungarian Sunday Goulash dinners in an old church cafeteria and I thought the SS were going to crash the doors!! = a lot of older Hungarians talking in their language ...my great father in law dressed in old Hungarian dress as he was a singer....etc

 

Zsa Zsa left Budapest in '41..I think the Germans had other plans than simple labor for her.

 

If there was some affiliation to the Arrow Cross Party there may have been a fear of retribution from the Hungarian CCP.