You may as well argue that it's disgusting and cruel to punish poor people who steal because they don't have money. Maybe on some humane level that's coherent, but it completely disregards the purpose of law. If not enforced a law is actually not a law at all. If you're going to allow illegal behavior without punishment then that would indeed be a disgrace, and the law should be changed. But if you're going to keep the law then it needs to be taken seriously.
So, you're actually looking to impose penalties on women where there are none now. What would the crime be?
If the unborn fetus is a person, it's first-degree murder, since it is done with pre-meditation and malice. There's no way for the woman to talk herself out of that jam, since she clearly knows what she did and did it anyway. In most states that gets a very long prison term. Would you sentence a woman to 20 years to life for having an abortion?
It's hard to make the crime less severe if you believe the fetus is a person, so we should consider what the penalty would be if the fetus is *not* legally a person. That creates a whole different set of issues, since if the fetus isn't actually a person, then how can you argue that the mother doesn't have control over it because it's an extension of her own body. In other words, I don't see how it's a crime at all.
But pretend the fetus is not a person but it's still a crime. If you want to go in the direction of originalism, which you have to do because you are rejecting the argument that abortion is a right women are entitled to exercise, then you have to consider what abortion meant in the era of the country's founding.
Back then it was looked at and handled pretty similarly in every one of the original 13 states. That is, it wasn't a crime at all if the abortion (or miscarriage) happened before "quickening". After that stage, which presumably would have to be checked by someone before the abortion took place, the punishments varied from state to state. But it still wasn't a crime until the first abortion laws appeared (circa 1821), after which legal penalties for the woman or doctor were exceedingly rare. When the woman suffered because she had the abortion, it was mostly at the hands of the Church she belonged to.
Most abortions through the first half of the 19th Century were for middle- or upper-class women. The earliest laws (as far as I can tell) were enacted because the popular method of the times were medical/chemical ingestion rather than by surgical extraction and the medicines taken killed many women by poisoning. So, most abortions were done by the woman herself, sometimes with either a midwife or doctor attending. Keep in mind that doctors weren't the high-minded scientifically oriented surgeons they are today and mostly dispensed advice and "tonics" to their patients. Anybody with a saw or an elixir could hang out a shingle until the early part of the 20th Century.
Other laws were enacted because the rate of abortion among US citizens was much higher than the rate among immigrants, and isolationists were worried that the country was going to be taken over by "aliens". Another important driver for promulgating laws was differences between religious groups; Protestants were afraid that Catholic laws prohibiting abortion would cause the number of Catholics to rise in proportion to the Protestant ranks. It continued to be rare for a physician to be penalized for performing an abortion, and even more rare for the woman to suffer legal consequences.
You can see that almost none of that was based on particularly moral grounds. I've read that the rate of abortions around 1900 was 5-10 times higher than any time since Roe v. Wade was made the law of the land.
I don't know what statistics you've read but...
I provided a reference in my post, and there are many others out there. You can (and should) do your own reading, since the research on 19th and 20th Century laws and restrictions on abortion haven't been studied systematically enough that all of the articles say quite the same things. For instance, you'll find that religious groups with a strong "pro-life" bias emphasize (and exaggerate) the prohibitions without providing reliable statistics. That's a characteristic of lots of different religious arguments based on so-called moral grounds that are intended to prevent people who don't share their beliefs from behaving differently than they do.
The bottom line is that you are fighting against 240 years of US history, and longer if you reach back into colonial American times, if you want to insist that "it only makes sense" for the woman to be punished for having an abortion, whether it is legal or not.