However, I simply disagree with you. Which doesn't per se mean I'm ignorant, trolling, or refusing to back down from a mistake.
To me, 'Having children' means you birth them and raise them. By shooting your sperm during unprotected sex you didn't just 'make babies' or 'have children'. I personally believe life does not start at conception, and as long as they look like tadpoles, I won't acknowledge them as something human. Heck, I even have my doubts about newborns. I find babies annoying and ugly as sin, and I doubt they have much of a psyche to speak of.
(Granted, the last statement may not be a healthy perspective; I blame eXistenZ — http://www.imdb.com/title/tt0120907/ )
I do intend to raise children. I suspect I'll feel differently about those then, and probably even about other people's children.
I've seen it happen to several of my friends who have become fathers, I have no illusion that it will be different for me.
(i.e. it says "have" which means a future action not "keep" meaning inaction - if you want to nitpick.)
Deciding to abort a baby due to bomb exposure is a completely different question, both morally and biologically.
The situations are so incredibly different (DNA can repair things a living organism can not) that yet again I'm amazed at how you combine them. Is it ignorance? Trolling? A simple refusal to back down from a mistake?