Here is the best response I have seen to this statement. It is excerpted from this article
Issue:"I would never have an abortion, but the choice is for others to make for themselves" or "If you don't like abortion, don't have one"
It is not inconsistent for someone who would never box in their life to want boxing to remain legal. Someone may hate the very taste of coffee, but that does not mean they need ban it. They could always simply stop drinking it. It would not necessarily be hypocritical for someone who hates fox-hunting to believe in others' liberty to hunt. Some try to extend this liberal principle to abortion: just because someone may think abortion immoral, distasteful and wicked, it is argued, they need not oppose it.
Having categorised boxing, coffee and hunting as three things one can quite consistently dislike without believing they should be banned, we ought to examine some things one could not consistently oppose without wanting them banned. A clear example would be rape. It would be utterly absurd to say "Don't like rape? Then don't commit any". This is because when someone is saying they find rape distasteful, they are not simply talking about disagreeing with the choices others make, as may be the case with hunting, but they are opposed to the very idea that anyone should force a woman to have sex with them.
The question is whether abortion goes into the first category - a matter of choice, like boxing or coffee-drinking, with no essential rights involved - or the second - a matter of fundamental individual rights, which cannot be negotiated and are not simply about the preferences of one person. Whichever side one takes in debating it, abortion does not fit into the first category, as both of the above statements wrongly suggest.
If one holds that innocent human life is sacred and valuable and that this value remains whatever the preferences of others, then abortion is clearly a matter of individual rights. No one can hold that abortion is a violation of individual rights while thinking it should remain legal anyway. That is what is so absurdly hypocritical about those who claim they personally oppose abortion but still want it legal. Logically, the only reason to believe that it would be wrong personally to have an abortion is if you thought the baby that would die has a right to life. But if your own baby has a right to life, why doesn't anyone else's? If the baby in your womb is an innocent human being, how does that change for babies that end up in the bodies of those who would be willing to have an abortion? Does the body know at conception whether the mother is pro-life or pro-abortion and produce a human baby in the first case but not the second? What if the mother changes her mind in the middle of the pregnancy? It is here that the absurdity of this position becomes clear. They are essentially arguing that someone's right to life should depend on the standpoint their mother took on abortion - that their own children have a right to life but the children of pro-abortion women do not. If this is not hypocrisy, nothing is.
Equally, to say that opponents of abortion should simply "not have one" is to miss the argument completely. Pro-lifers are not saying that it is their personal preference that individuals have rights, but that innocent human life should be protected whether in the body of a fervent pro-lifer or a conscienceless woman on her seventh abortion. It makes no sense at all to argue that if someone doesn't like slavery, they don't have to buy a slave. Yet that very argument was used in the US in 19th century, and is used now as a defence of abortion. Abortion is either murder or it isn't. To sidestep this question and pretend it is merely a matter of preference, like the choice between washing powders, reveals either ignorance or dishonesty.