You need to understand the horrific crimes that were committed against the Jews that came from Yemen. They were brought to do the slave labor for the white Jews to begin with.
1. Shortly after they arrived, they were told that it was government policy for the newly arriving immigrants to hand over their jewelry and other valuables for safekeeping. They handed over all their valuables and they never saw the men again.
2. Ashkenazi men kidnapped thousands of Yemenite children and they sold them to other Ashkenazi people for $5,000 a child which in today’s money would be $50,000 a child. (Google: missing Yemenite children).
3. The Ashkenazi came to believe that the Yemenite Jews had what they called ‘negro blood’ because they were so dark-skinned and they began to do medical experimentation on them killing so many of the Yemenite children in the process. Google: Yemenite children negro blood.