It's good to have such an articulate post laying it all out.
I've been in this for over 5 years now and have become aware over that time how huge this is, and how the 'personal choice' argument is a whitewash. But I have had trouble joining the dots, even though I knew transhumanism was there somewhere.
Mary H doesn't discuss the role of religion, apart from a vague acknowledgement of our Christian heritage in the UK. I'm not a Christian but, from observation I'd say the CofE has been very weak on this, especially under Justin Welby. We humans are supposed to have been made in God's image but the CofE seems to be happily embracing the idea of that image being incorrect.