Better minds than mine - is this scenario a false equivalency for abortion?

[Greybnk48]

3. It would be very nice of you to give someone

part of an organ, or one of your organs, but as an autonomous agent you are not morally obligated to do so. There is no coherent moral argument/obligation to back up any such law without arguing that one person has more value than the other.

Just like you're not obligated to dive on a grenade in a foxhole to save other people because your buddies in there are much younger, or healthier, or smarter than you are.

Again, many people would donate an organ or part of one, but your worth and suffering is not inherently less valuable than someone else's as far as moral obligation goes (unless you're a utilitarian, then start doing the moral calculus, lol).

This is not a false equivalency. Read this, it may help: http://spot.colorado.edu/~heathwoo/Phil160,Fall02/thomson.htm