This is a terrible point. Abortion isn't like a house sale. By its very nature, the decision can only be made by one person. If you make it so the man has to consent, then you've essentially given a veto power and put all of the power in the hands of the man. If you don't have it so that the man has to consent, all the power is in the hands of the woman.

In the end, by its nature, the whole decision has to rest with one person. Not an ideal situation, but that's the way it is. As between the two people involved, it makes more sense to have the decision fall to the woman than the man.

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"There ain't no devil, there's just God when he's drunk." - Tom Waits