Studies that say abortion decreases the crime rate have been refuted by experts. But let’s presume for a moment that abortion did in fact reduce the crime rate. All that would prove is that that some killing can be replaced by other kinds of killing, and that some kinds of sins can replace other kinds of sins. In what way does it improve society to simply replace violence against big people with violence against little people?
What we have to remember about abortion is that it is an absolute evil. No matter what good benefits could ever arise from it, there is never a reason in a million years why even a single abortion could be permitted. Each single abortion undermines the entire moral order, and therefore must be opposed with all our strength.