8) "Women will abuse the freedom to have abortions at will"

This is like saying that people will get sick on purpose to take advantage of free medical care.

The first line of defence against unwanted pregnancy is knowledge of and access to effective, safe contraception. If that defence fails, for whatever reason, the only one left is abortion. Since we do not believe abortion itself to be wrong, we have no moral objection to the number of times women resort to it. But if women did have really adequate protection against conception, it seems highly unlikely that they would deliberately choose abortion instead.