Humans are beyond what "needs" to be done. We have rather reached and passed the point of "want" being significant.
You don't "need" a computer, it's wasted money. I don't "need" any of my video games, wasted money. I don't "need" a varied diet, wasted money.
Moreover, regardless of whether it's risky or not, each individual is free to decide whether the risk is worth it, without others telling them what to decide.
And on top of all that, if genitals are so icky, then why should we even have sex anymore? Artificial insemination is safer, and obviously sex for recreation is inconceivable.
Your argument is bad, and you should feel bad.