The Importance of Sex in Modern Culture

I should flag on this point about why would the creator of the universe care what you do with your penis? I understand the force of that question. But there's a misalignment of grandiosity here because God cares about everything, including the stars and the planets but he also cares about the minutiae too. It doesn't seem so special to me. Like let's think about the Quran. Does it does it seem strange to you that thecreator of the universe would put in a book about something about the testimony of women being less than men in a court of law or inheritance? That doesn't seem strange at all.