done nothing?......how many laws intended to reduce abortions have been passed by popular demand and thrown out by the courts?....and how does killing children reduce the number of children killed?.....
Very few. Afaik, pro lifers have only passed laws through legislative acts (not exactly popular demand) and many have been thrown out because they were only intended to deny the constitutional rights of women. I don't know of any laws the pro life movement have championed that were narrowly focused on reducing the need for abortions.
Conservatives also promote "abstinence only" which has proven very ineffective in reducing unwanted pregnancy. More unwanted pregnancies means more abortions, legal or not.