what are douglas observations about the mulatto children- those who had a slave mother but white father,who was usually the slave owner?

Children born from slave mothers and white fathers – mulattos – experienced far more difficulties than did other children. They must always fear the wrath of the slaveowner's wife; their presence was a constant reminder of her husband's infidelity (slave owners raped their female slaves).  The slaveowner himself must watch his white sons abuse their black brothers. It is actually best if he sells these children to another slaveholder.