I have a hypothetical for you. Say I developed horrible bone cancer. I have 6 months to live. My cousin Joey is a perfect bone marrow match- his donation would save my life. But he doesn’t want to give me his marrow, because it’s an intensive medical procedure. He has a few reasons, but that’s not the point. Should he legally be forced by the government to donate his bone marrow to me? (Let’s assume I live in the US).
You are attempting to equate pregnancy to organ/blood/marrow donation. Pregnancy is unlike any other event in the known universe and cannot be compared to anything else. In pregnancy, a preborn child is where they are meant to be, doing what they are meant to do, by no fault of their own. Intentionally killing them is wrong.
In your hypothetical, you are asking another person for something you are not naturally reliant on – their bone marrow. Unlike with pregnancy, your life path is now independent of other human beings. Although your cousin would be a horrible person for not donating to you, he would not be intentionally killing you.
Abortion is the targeted destruction of a living human being and should be illegal. Refusal to donate one’s organs/blood/marrow is not the targeted destruction of a living human being and should be legal. Isn’t it sad how hard you are fighting to justify the killing of innocent children in the womb?