It's important to keep in mind that all those generations before us did it because that's just what you did - by not reproducing you're not stopping the Kwisatz

It's important to keep in mind that all those generations before us did it because that's just what you did - by not reproducing you're not stopping the Kwisatz Haderach from being born or anything. There's no manifest destiny here - it's just that sex feels good. That's it.