Biden is not "just fine" with abortion. He seems to support it remaining legal, but he is personally against it.
On the other hand, we have Trump, who claims to be against it, yet he has paid for women to get it.
Which one is more Christian? The one who says "Yes, father, I will do it," and then does the opposite, or the one who says, "No, father, I can't," but then does what his father asks?
If you think paying for an abortion is okay, then you're not anti-abortion.