I’ve already discussed at length why pro-choice arguments are just as fallacious as the anti-abortion arguments. But in this entry, Heretic makes a case that pro-choice arguments leave the door wide open for anti-abortion lines of reasoning to put their foot in.
Moral disagreement: There is nothing inherently wrong with abortion, and in fact, it is safer than the health issues resulting from pregnancy. We legislate based on what we think is morally right/wrong all the time even though people will do things anyway in spite of the law. If you claim that abortion is wrong, you are giving ammo to make it illegal or impose cutoff points. Then it comes down to “choosing life over murder/death”: “i myself don’t support abortion, but i can’t stop women from having them” or (per notcisjustwoman)” I don’t agree with abortion, but I guess I will allow it,” etc. It is a slippery slope.