I don’t have a single problem with someone buying the plasma of a younger (but adult) person - who is voluntarily giving it up - and using it on themselves. This is purely libertarian - I can voluntarily give up a (renewable) resource that I own for money, and you can voluntarily buy it. Whether it works to accomplish the goal of extending healthspan and/or lifespan is an entirely different matter.
OTOH, taking plasma (or blood) from an aborted fetus/baby for these purposes is an absolute outrage. Same for any other body parts, and mainly because abortion itself is an outrage. But that is not voluntary, notwithstanding if the mother gives permission - there is no consent from the baby. That is why I stated above that this would have to be a transaction between adults, because the person from whose body the plasma or blood came should be the ONLY one who can enter into this type of transaction. The body of an unborn baby is NOT the body of the mother, even if it is inside of the mother and drawing nutrition from the mother.
Correct, and there's absolutely no hint of that happening, and even this hysterical article doesn't claim it is.
Voluntary donors are mentioned in every non-speculative reference.