Because if the two things were happening now, immediately, if the option was precautions now or an abortion now, I suspect there’d be a considerably smaller amount of abortions. People are just willing to take the risk and forego immediate unpleasantness even when the later unpleasantness instead will be a while in coming. That’s a pretty natural thing for humans to do, i’d say, but doing so over and over again does seem to me like a person who hasn’t learnt a lesson. I’m not sure i’d go with “condemn”, but it doesn’t appear all that smart.
It’s because we need to take that into account, to the extent that we can. Here’s an example; as a kid I once had boiling oil on my hands. As you can imagine, that was not pleasant. Today, I can’t fully understand or remember how painful that was. Again, that’s pretty much just a human thing to stop us going nuts. But it doesn’t mean that, were I to be uncareful around boiling oil in the future, that i’m not being a bit silly. We all have to take into account that unpleasant things expected in the future will likely be a lot worse at the time than they appear to be right now.
Certainly it is not a great argument for everywhere; I suspect there are places where it is not so easy, yet still possible. You did ask for reasons against, though, so I thought i’d pitch all the ones I could think of and not just the best ones.
They scare me not so much, because pro-lifers do not have a vast amount of power nor can provide a huge amount of politicla pressure. But I am scared of what they can do; they can attempt to change the law to outlaw abortion, or smaller pieces of legislation to take away smaller amounts of that ability. If those who try to take away rights that I believe in have not insignificant power, I have no problem with agitating your own side or disagreeing with them, but it doesn’t make much sense to do things which either really piss them off or can be used by them as ammunition to convince others.
Don’t worry about it. It’s a debate that’s often argued with placards, insults and hatred; being a little hard-headed is pretty good for us.