I remember hearing mention of this somewhere that WW2 Germany had tried to deport it's Jewish population to other countries but those countries rejected them. After a while, I tried to find any sources that had any relation to this but I could only find one called the "Madagascar Plan." https://en.wikipedia.org/wiki/Madagascar_Plan

I'm not entirely sure if it is true or if it is factually accurate but it was the closest source that I could find that related to this.