I know my wife and I both do everything in our power, as responsible parents, to ensure our children (born and unborn) will grow up healthy. If there was an opportunity to increase those odds we'd do it without hesitation, because that's what good parents do.
To not employ that logic confuses me. Why would you, as a father or mother, want to even REMOTELY risk any harm to your children....especially when the risk (however small or large) is due solely to your own addictions and/or perversions?
To me, being a parent is putting the children's well being first, hands down, no matter what, no questions asked. I would give my life for my kids, and I couldn't live with myself nor could my wife if we put them at risk because we were too self centered to shelve irresponsible behavior.
Parents are accountable for their children. I guess I don't see any room for compromise there....but I suppose others do.
Which brings me back full circle to my original statement, some people are self centered and really fucking stupid.