This doesn't address Euthyphro's dilemma at all. You might as well be stamping your foot and insisting "He just doesn't understand!". This doesn't amount to a rebuttal. Fourth is the category of Moral Arguments for Deity, which Russell attributes primarily to Kant and rebuts with Euthyphro's Dilemma, arguing that either God's moral dictates are arbitrary meaning God cannot be non-trivially 'good', or God is himself subject to morality and therefore not the source of it.
Euthyphro's dilemma forces an either or regarding the nature of God and neither one is correct and Russell is wrong again
The Bible states that no one is good but God alone (Mark 10:18)
God loves because He chooses to