I assure you, your thoughts on this are not unique or something hardly anyone thinks about, they're just not well reasoned. People have sex for a lot of reasons, and having children is, proportionally, almost never the primary driver. Sex is not the act of fertilization of an ovum by a sperm. If it was, we would call IVR 'sex', which obviously nobody does.
I never said sex was the act of fertilization, you are putting words in my mouth. I also never said anything about recreational sex, I of course agree that exists and is sex. You seem to be disagreeing while saying a bunch of things I agree with.