Sorry but any woman who admits to an abortion and has other children has altered and affected the relationship she has with those children. The kids at some level psychologically view the mother as person who murdered a sibling. Not a good or nurturing feeling for that kid.
You make an excellent point that should not be forgotten.
Women who abort become incapable of developing a healthy relationship with the children they do not abort. They either fail to bond properly or become pathologically overprotective and overbearing. Come to think of it, I wonder how much prior abortions feed into the phenomenon of helicopter parenting...