In Arabic, Ghulam means a slave, and Aaka means slave owner.
Muslims are past masters at capturing other people's women as sex slaves and trading in them. In fact, in middle ages, the Arabian economy was dependent on plunder and slave trade.
This slavery exists in Christian and Muslim culture. It never existed in the East, from India to Japan.
Abdul, do you know why the first dynasty of Delhi Sultante is called the slave dynasty?