Complicated and many layered topic you scratch the surface of here but very well for a 3 minute read. Nothing you say is wrong. I tend towards what Viktor Frankl writes, in addition to our primal need for sex, “sex is a mode of expression of love…love is not understood as a mere side-effect of sex; rather, sex is a way of expressing the experience of that ultimate togetherness which is called love.” Yet sex can certainly bring lots of short-term pleasure without love, and many marriages are based not love but on exchanges for sex. https://whitefeather9.medium.com/prostitution-and-divorce-bae0df9fc677. Yet unconditional love is attainable. https://medium.com/know-thyself-heal-thyself/unconditional-love-3481bffe22f4. Sex though, is yes very powerful and as sex between soulmates is the one thing that can only be achieved on Earth, I believe that the hope of making love with soulmates is what drives us to reincarnate into ever more painful lifetimes. https://medium.com/flowers-of-inspiration/12th-step-1st-step-conscious-contact-with-heaven-8854ae714389