Techne, Superman, Miscegenation

Probably the most common interpretation of the term "knowledge" that appears in Genesis 3 is "having unauthorized sexual relations", while a second one, akin to a Promethean reading, is Techne, i. e. that Adam and Eve steal Know-how from God.  So, miscegenation can be doubly Theologically criminal Now, some passages suggest that Nietzsche's Superman is a product of such Techne, i. e. of deliberate human cross-breeding, and it is for this goal that in his prologue Zarathustra judges humans to be not ready.  Plus, this superior being is plainly beyond the Christian Morality that is Nietzsche's target throughout his oeuvre.