[Dave S]

You are making the error of equating blood (a subunit of the organism) with the whole organism (as in an embryo is the organism, the whole person at the age of embryo).

Then what's your problem with stem cells? Cells are just part of that glob of cells you call a human being at two weeks. Are you saying that taking a cell or two is equivalent to canibalism but that taking a pint of blood isnt?

[MrLeRoy]

Then what's your problem with stem cells?

Taking stem cells kills the donor.

[MHGinTN]

Killing the embryonic individual for its stem cells (its body parts) is cannibalism.

Thank you for raising this issue, allowing me to point to the irrational parallels. Organs (the stem cells of the embryonic individual) are the subunits of the organism. If we took your two (I'm assuming you still have the normal complement) kidneys, you would die from the removal. If science takes the embryos organs and the embryo dies from the taking, it is an egregious act which I call cannibalism because the taking is part of an effort to sustain the life of an older individual by cannibalizing the body parts of a younger individual.

[carenot]

Are you saying that taking a cell or two is equivalent to canibalism but that taking a pint of blood isnt?

A pint of blood if left alone cannot make a baby.