Abortion and contraception is a woman's issue and I don't believe men are experts on the subject. They are not experts on pregnancy, either.
I don't know where Mr. Carson gets the idea he is an expert on either abortion or slavery. But, the analogy is very interesting.
Women will become slaves and men slavers to the womb if they do not have options. Women will continue being second class citizens if Mr. Carson has his way.
I am not convinced abortion will ever end in the USA. But, the country has done incredible work to minimize it.