I don't like abortion at all, but there are many cases where women get pregnant against their own will, or the father leaves while she's pregnant making the mother raise the child by herself. There is child support, but a lot of men don't pay it. Don't tell me it's the law because criminals don't obey the law.
Of course, there's adoption. Unfortunately, there are tons of kids in the system, and abuse of all kinds are common among those children. Many of them live in poor conditions and never get adopted. It's actually very bad. I would adopt, but due to my disability, I would get denied. If I had a biological child, on the other hand, I'd be expected to raise it?
Some people shouldn't have children and would actually make their child's life hell. A lot of abused children end up killing themselves, and those who survive suffer from mental illnesses such as PTSD that could last the rest of their lives.
If a woman gets pregnant and can't raise the child, maybe her financial situation is poor and the father ran away, or she gets raped, would it be better to kill the child or force them to live in poor conditions and possibly kill themselves at a young age anyways. In fact, children with abusive parents and poor living conditions are less likely to become Christian, so a lot of them will be in hell.
Will an unborn baby go to Hell because of the choice its parents made? That does not sound like a just God. In fact, the Bible seems to say unborn babies go to heaven. If you can't give them love, do you think they'll believe in a loving God? Wouldn't it then be more merciful to abort the baby if their chance at a decent life doesn't seem very bright? There's far more chance for an aborted child to go to heaven than someone who turned against God out of bitterness of their living situation according to the Bible.
If you can't love the child and care for it, and you can't trust someone else do give the child what it needs, wouldn't abortion be the better option? Don't assume all children who get adopted go into loving families. Some adopt so they can have power over someone and end up abusing them. Yes, even heterosexual couples, so banning homosexuals from adopting won't fix that. Also, a lot of Christians want to restrict adoption to married, heterosexual couples. You can't expect someone to keep a child if you won't let them adopt.