Good question isn't it? People try to rationalize killing an unborn baby by saying it's not human (yet), give me a brake. The sad truth is that there are people who actually believe that.
I believe that. A fetus is NOT a baby. It has no functional brain, feels no pain, has few or no motor skills, etc. If a fetus is a baby, it is a 99% dead baby. The only thing a fetus is is a shell in which a baby could form.
The thing is, you say that a fetus is a baby because given time, it will be a baby, like:
Fetus=baby-time and care
Well,
DNA=baby-time and care, too. If you take a cell from any part of a person's body, use the DNA to make a clone, and care for it, it will become a baby. Am I commiting infanticide every time I scrape my knee?
About the problem with abortion being that the consequences of unsafe sex are removed, here's a list of other things that we should ban because they remove the consequences of unsafe activities:
Seat belts--people might not be as scared about getting into accidents if they know they won't get hurt
Air bags--same reason
Brakes--People will just go faster if they know that they can slow down any time they want
Circus safety nets--those acrobats think they can get away with ANYTHING just because they have a net down there--we have to scare them into beings SAFE!
Etc.
Plus, if a kid rapes a girl because he thinks they can just abort it, he has some serious mental problems. If he rapes a girl, he's not going to stick around to make sure she aborts it. His only option is to not get caught. If he's found to have raped someone, paying child support will be the least of his worries.
If a kid has sex at a young age with only a condom and gets a girl pregnant, he is misinformed. That is a problem that could have been solved by the parents talking to the child in a calm manner about the dangers of sex--not saying "NEVER HAVE SEX YOU'LL JUST DIE!!!" but saying "If you do choose to have sex, I hope you do it with someone who you feel VERY comfortable with and love very much. Now, if you do choose to do this, you will have to know about STDs and pregnancy. The best way to prevent both of these is getting tested for STDs first," etc. etc. etc. Then maybe the kid wouldn't have thought he was safe with just a condom.