Wait, you don't?"In the sequal, I want a discussion of homosexuality."
Why this particular discussion? If the 'living together' worked for the first book, why not something related, like 'sex other than for procreation' for this one?
"No arrogance, no anger, but with each side communicating logic and self-confidence."
How can this work, when, based on your description, one or the other, (maybe both) are troublemakers trying to start a fight? This is not a discussion that two calm, logical people would have, not with each other. If each one knows that the other has a firmly opposite opinion, polite people do not start 'logical discussions' on the disputed subject in a conversational context.
This is something you do to score points, needle or browbeat your opponent, or make them look bad. Unless you're at a public debate or liquored up.
Non-religious example: you do not stand in front of your father-in-law's gun case, looking at his trophies, eating the barbecued game he hunted, telling him there should be a total ban on gun ownership, and expect the evening to go well.
I could seriously actually see this happening between my dad and my husband. And the evening turning out fine, because my dad's a pretty mellow guy.
And while I myself don't self-identify as gay, I have many close friends who do and whom I care about deeply, and yet I've had very reasonable, logical conversations of this sort with my deeply conservative former talk-radio host uncle, which bystanders claimed were interesting both for their content and for the fact that we were perfectly polite all the way through.
For the OP, basically, my uncle believes that homosexuality is a social construct/influenced by a lack of suitable male role models in early childhood. (He backs this up with studies from the seventies and eighties. Nothing newer, because the PC police won't let folks do studies which might cast homosexuality in a negative light.) Basically, improperly raised kids are more susceptible to bad ideas and confused about proper gender roles.
Me, I go more with a biological explanation, though of course social construction enters into anything so complicated as personal self-identity.