A minister I once knew said he was leading a class discussion and he asked the students, "What are the main themes of 2 Thessalonians?" One of the older students said. "I'm not sure exactly about 2 Thessalonians, but I have read through the whole bible and I was struck by how much emphasis there was on sexual purity." The minister said, "Yes. That is one of the themes."
More recently Freud claimed that stages of psychosexual development described the emotional growth of children. Failure to properly resolve those stages is what causes dysfunction in adults.
Gray says that morality is dyadic, meaning there is an agent and a patient in every moral interaction. There is a sea animal which mates by two males fencing with their penises until one penetrates the other and injects reproductive tissue into the other, who then becomes the female and bears the offspring. It's no coincidence we use the word "love" to refer to both sex and altruistic compassion.
I think moral behavior evolved from sexuality. Watching Jerry Springer I observed how romantic couples behave violently towards one another. There's a big domestic violence problem in our country.
I think we have to encourage people to control their sex drives and channel that energy into compassion or something creative. Like sports. Sports are metaphorical sex acts, channeling sex in homosocial groups into conflict. If we just let people go, many of them are liable to act out violently.
I have no problem with LBGTQQIAPP people or with abortions. What I mean by sexual purity is to express one's sexual energy through compassion rather than through violence. It's difficult, but once we know what the problem is, we're most of the way there. It's not a matter of following God's law. We can have the best possible society by taking sex into account. It's like we're all addicted to sex, and need to work it out ritually.