When the population is closely split, and has been so for long periods, it is a waste of time to continue to force the issue. Roe v Wade is the law. Why do you feel the government should be in the business of legislating what half its citizens do not want? 
Forcing a woman to continue a pregnancy is to ignore her rights. What next, force a woman to become pregnant? After all, think of all the potential babies women aren't having! And men, how many men are wasting their precious life fluids with no children to show for it!