I don't think it's fair to assume that the blame lies mostly on the woman or that the dud was tricked into having the kid. Because plenty of men want a kid when they believe that it's going to be the perfect little mini-me that won't take too much of their time and will be mostly cared for by the wife.
And once having a child is mutually agreed upon, the man doesn't get 100% veto power in telling a woman what to do with HER BODY once she's pregnant. She shouldn't be coerced to put HER BODY through an abortion if the kid they both agreed on is defective.
Obviously, that works the other way too- if not having a child is mutually agreed upon, the man doesn't get to try to coerce the woman into not aborting an unwanted fetus. But it shouldn't be the kind of situation where whatever the man wants reproductively, the man gets, and the woman has to do whatever that is to keep him around.