I'm not your child specifically. You're not the Leia that eventually becomes my mother. I doubt you'd ever fall in love with a Corellian Smuggler. So me, my twin sister and my brother will likely never be born in our world.
I see. Frankly I doubt Grandfather could create a Sith Lord properly. We're created through pain and sacrifice. If its done properly I mean, and not at the whim of an arrogant fool