the moral distinction I'm pointing to is that an embryo has no agency and thus cannot be considered a moral actor (and therefore not blamed or praised) whereas a born human does have agency and can be considered a moral actor.
this prejudice might not be a coherent position in our society and the irony of that is what I think bowser was pointing to with his original post. I kinda agree with that but was attempting to deconstruct an important cause of this prejudice.