Listen, it's really VERY simple. Can the fetus survive on its own? Yes/no?The fact remains it is not a parasite
Does the fetus depend on the host (woman) for survival? Yes/No.
Then it meets all the criteria for being a parasite. End of story. Really tired of you trying to keep putting lipstick on this pig. It's a parasite. Deal with it.
Then by your own definition those "machines" are being parasites too. You cannot redefine words to serve your own delusions. The world simply doesn't work that way.it is also in the machine that makes it and like all machines you have to feed it material and energy to produce it's product.
And where does the sperm come from Einstein? Do you think it's hiding behind a tree near the egg? If you remove the sperm from the equation then the fetus can never exist in the first place. There is a biological medical term for this. It's called Semiallogenic Graft. I've got plenty of medical references for this if you seriously need to read up on it, including Steadmans. A good book to learn more about this is called "Biology as Ideology: The Doctrine of DNA".To call it a parasite it would have to have been introduced from the exterior.
"Normal pregnancy: Due to its paternal antigens, the fetus may be regarded as a semiallograft in the maternal organism. Successful reproduction is dependent on both local (intrauterine) and systemic immunosuppressive mechanism from the beginning (implantation) until the end (delivery) of pregnancy." - Professor Rigmor Austgulen