In a comment you made yesterday you raised the following matter which I see as important because much is made of the imago Dei and it is possible that we might misunderstand what it means in relation to important issues in human dignity:
"Peter, I had not noticed the necessity of complementary genitalia as going to the heart of what was being referred to as a reflection of the image of God which is an imaging of the distinctive Persons who are also One being, diversity in unity. Please help me see how you move from the distinctiveness of three Persons, traditionally all referred to by the male pronoun, to this being only appropriately reflected in two humans with complementary genitalia."
(Here, if you like, is a presuppositional introduction: The first chapters of Genesis set the scene for the remainder of the Bible in respect of the progress of God's will for God's creation. They tell the story of creation, of the messing up of creation (the Fall) and of the beginnings of human history as a story told of frail and feckless humanity's distance from God and disturbance of one another (so, e.g. Genesis 4 tells of the first murder). This history is signalled in Genesis 3 as being a history that God will be involved in as God seeks to reverse the fall through healing (salvation). That history, as you know, leads to Jesus Christ the Saviour of the world, and his story, in gospels and in epistles concludes the story begun in Genesis. Thus in the light of that story we re-read Genesis as Christians (fully aware that it was first written down as a story of ancient Israel) and we particularly read it in the light of our Christian understanding of God as Trinity. So when we zoom in on some of the details in Genesis we make some connections ...)
For humanity to be created as male and female in the image of God (1:27) suggests that the diversity of humanity (male and female) reflects or images the diversity of the Godhead (Father, Son and Holy Spirit) and the unity of the Godhead is imaged in the unity of diverse humanity which, in the flow of the Genesis story, is the coming together of husband and wife in 'one flesh' (Genesis 2:24). That is, God is imaged in humanity, in each and every human being, in the diversity of humanity consisting of male and female, and in the unity of humanity in the particular embodiment of diverse humanity into one which is marriage.
With kind regards,