Norswede,
No one denies the reality that some women will have objectively better reasons for aborting their babies than others but that fails to address the fundamental right at stake, which is that no law, or no one person's pious convictions, should have a say in another person's right to control her own body.
I'm glad, also disheartened, to read that, were it not for your religious beliefs, you might support a mother's right to have an abortion in certain cases. That's a start.
When you say that "in Canada, a woman can have an abortion at any time for any reason and no it's not always a painful decision for them to make," how do you know this? Don't you think there's an element of pain and of regret for every woman that has to endure an abortion procedure? I find it difficult, almost impossible, to feel otherwise, regardless of how they may conduct themselves ostensibly.
As far as teenagers using abortion as a form of birth control, I don't believe any underage girl has the right to make a decision like that without a parent's or guardian's consent. At the same time, I don't feel anyone outside her family has any right to interfere in that decision either.
Now, I have to ask a tough question, because this was the point that you claim angered you the most and because I'm genuinely ignorant on the particular topic. Who are these "millions of women that can't have children that are on waiting lists in most cases for years before they can adopt a baby?" Do they have strict requirements for the background of the babies that become available to them? Here's why I ask. Since you seem well informed on the issue, you probably know that the grand majority of abortions today, at least in the United States, are had by black and Hispanic women. What, in your honest opinion, will happen to these babies of color who, once born, are hopeful to be adopted by the "millions of women" who have been waiting for years to adopt and raise a child? I shouldn't have to tell you, but this is no time to be politically correct. It requires an honest answer because once these babies are born, as you would exclusively have it, the rest of their lives really will be at stake. To state what may be obvious, something in me says the overwhelming majority of these babies will be denied a "loving family" for no richer reason than the harshly obvious one, that they're not white babies. I have no empirical data on this, none at all. But anyone who is familiar with racism, either other people's or their own, won't flinch if something in you simply won't allow you to disagree.
But, by all means, respond.
-Tom