I want to preface this post by stating that I am adamantly anti-abortion.
However, why does anyone think that prohibition will work any differently in that case than in any other case where prohibition was tried? To think that passing a law against it would reduce the number of abortions is being intellectually inconsistent.
Of course I see the difference between drugs and abortion, one being a victimless crime while abortion has a clear victim, being the child. But from a strictly results-based point of view, what does anyone hope to accomplish by prohibiting it?
Just like with anything else, education is the best answer.
Can't ban it. Can only incentivize successful, responsible reproduction.
Prohibition always makes things worse.
While I understand your reasoning, I don't agree that it's a good enough reason not to ban abortion. We don't pass laws to ban things just because we believe the laws are preventative. Most of the time, they aren't. We have laws against stealing yet robbery is common. We have the death penalty against murder but we have a horrible epidemic of murder going on in various places in the world. Laws aren't just passed to prevent things, they are sometimes passed to address and punish things they can't stop because those things are simply wrong.