Not true. Contraception is and will continue to be a viable option. People use it, even the "dumb" people you reference.

Your idea of a future without abortion is even more extreme than my idealism. Knowing there isn't an easy way out would change society for the better. This isn't ignoring that some people would abort illegally and some doctors would do it anyway: but it's a crime that should be severely punished for the doctor, as Alabama wishes to do soon. People that are "dumb enough" to want abortion anyway will suffer the consequences of having it done illegitimately.