I don't think women want to get abortions, but it doesn't change the fact that it ends human lives. Regardless of their intentions, it's still wrong. Intentions are not the only things that matter.
I ask because the way you characterize abortions as a moral issue presumes that abortions are performed due to morals rather than necessity. It warps the intentions of women who get abortions and mischaracterizes the gravity of the decision.
The intentional killing of another innocent human is never necessary. Never.
Ignoring that you
just said that intentions do not matter, then you should equally be against preventing or refusing to service a woman in need of an abortion for a pregnancy that will kill her. Otherwise, you are contradicting yourself saying that it is okay to intentionally kill an innocent human (due to inaction) for the necessity of preventing abortion.
It might still happen (as I'm sure it will), but the state shouldn't publicly teach their citizens that it's something that should be permitted (passing laws has the effect of teaching citizens moral rules, regardless of whether or not we think that's the case).
I'm just making the point that the federal government intervening (as it did in Roe v. Wade) set a large percentage of the country on a trajectory toward believing that it was morally permissible to have abortions under certain circumstances.
Then you have to demonstrate why it's not, which you have not done so. It
is something that is permitted, whether you like it or not, and not giving that information to people who need it . I will agree that passing laws can influence moral rules, but making that the primary focus of a law is irresponsible at best and dangerous at worst.
Here's an example: If the government passed a law allowing the practice of bride kidnapping, and if the country was led to believe it was a harsh practice (but necessary to keep legal), doesn't the government have a responsibility to officially ban such a practice (or at least encourage its citizens to stop the practice) regardless of the utilitarian consequences?
The difference between bride-kidnapping and abortion is that one is far less common than the other and the other is a necessity of human biology. Women will get pregnant and there will be situations where their life will be at risk, to say nothing of bringing a child in an abusive, unprivileged, or dangerous situation. People want brides for social/financial reasons that can be addressed at a far more fundamental, societal level. You cannot stop women getting pregnant and needing abortions just as you cannot prevent people becoming diabetic and needing insulin (at least, not currently).
Ignoring that kidnapping is already illegal, a better metaphor IMO would be mail-order brides. Most mail-order bride services involve actual kidnapping of people, human trafficking, and other negative results. If we wanted to provide a mail-order bride service, it would behoove us to regulate it and make sure it is safe, and even better would be to address the system that makes mail-order brides desireable.
Similarly, illegal abortions involve human trafficking, preventable injuries and deaths, and it would behoove us to regulate it and make sure it is safe, especially since it's a much more necessary service than a mail-order bride. And as before, it would be even better to address the system that makes abortions more necessary than needed such as birth control access, sex education, and health-care access.
Go as fundamental as you can and address the system that would bring a need to the service in the first place. Murder will probably happen for the forseeable future. Framing murder as a moral issue obscures the more tangible causes like poverty, education, access to healthcare, etc...
I should mention that I'm actually not utilitarian, but I did mention utilitarian value just for the sake of argument (just to make the further point about there being no huge negative consequences).
But there
are huge negative consequences, including but not limited to increased risk of injury, increase in preventable deaths, increase in poverty (kids are expensive), more orphans, domestic violence, etc...