You can parse this victory any way you like, but its main ingredient was time. Time to enter the modern world. The 35 years between the insertion of the Eighth Amendment and the vote for its removal, to be exact.
Most of the people who worked on the campaign, on both sides, were not born in 1983, but those of us looking back on that era can’t help noticing that we now have a lot of things we didn’t have then. The first difference is the most important: most Irish people now know someone who has had an abortion. Of course, in 1983 most Irish people knew someone who had had an abortion; but now.