"Abortion may be necessary in certain circumstances, but abortion on demand is killing another person for personal convenience...and the Church is correct to oppose it."

As far as I'm aware, the Church does not allow abortion under any circumstances. Of course, this law is a complete ass, as millions of Catholics demur and a good number ignore it with good conscience. As for your emotive claim about abortion on demand being done for personal convenience, you are declaring a blanket judgement on millions of people which simply can't be justified. In other words, you're guessing, and it's a pretty lousy guess.