Equality is a sin, we are all created in the image of God, but we are not created equal. To hate one another based on where God put us is to hate God Himself.
Yes God created the nations and the territories, classes and hierarchies, however he did so that we could learn to know and love God, not to hate, oppress and murder one another.
THE KINGDOM OF GOD LIES WITHIN ALL MEN.
It's not a democracy of God. Democracy is against hierarchy, a divine virtue with which God rules with.
We may not be worthy of being kings and monarchs, or even aristocracy, but we have in us the potential to bring it about.
Hatred for each other based on class stands against God's message. The last century or so has seen the end of traditional monarchies and classes, to create equal beings; replaceable workforce. Similarly, when we are 'equal before God', you should not forget that God can replace us with rocks.
Hierarchy is what separates man from animal, and animal from rock. Yet of course, from other men. Some are more animal than others, especially the lower classes are more banal and instinct driven.
Christ came for ALL humanity, not just men, women or slaves.