Contraception should be used before sex, not the morning after. That's why the morning after pill is called Plan B.
Plan A is using birth control BEFORE sex.
I think the long term solution to abortion is more contraception education. According to the pro-choice Guttmacher Institute, almost half of all abortions are the result of no birth control of any kind being used during the sex act which led to the pregnancy. Another fifth are due to the improper or inconsistent use of birth control.
The morning after pill is a good idea in cases of rape. In fact, it is offered to rape victims now.