I think the parent is attempting to ridicule the GP or trilialise the way they see circumcision - some Americans get practically religious with their defence of mutilating their newborn boys' penises.
I think the parent is making a rational comparison between many classes of being that we tend to define as either the animated unconscious or insensitive to pain in order to assuage guilt for killing them out of convenience.
I'm extremely pro-abortion and think it should be allowed for any reason by the mother until the fetus would be viable if birth were immediately induced. I will also continue to kill flying bugs who are unfortunate enough to get past my window screen but can't figure out how to leave. I will not refuse to see the comparison and I will address the potential cognitive dissonance.
