Yet, people made the journey to Australia over 50000 years ago, long before they had developed agriculture, wheels or domesticated animals. There was no navigation or fancy ships. And they did in the hundreds. Enough genetic diversity to settle down for the next 50000 years.
We are very far from doing that in space and beyond our solar system it may even be completely impossible. But who knows what happens in the next 50000 years.
I don’t want to have kids simply because I’m miserable and never consented to being born. I am not suicidal but I would have rather not been born in the first place.
Most people grow up happier than me, so I can’t really make a philosophical argument out of my own experience. All the best to you and your family!