"just that".... the newer legislation was made illegal by Republicans, and Republicans decided the 1864 law is still valid. This is how you roll back the country 160 years. And it's not just that this particular law is literally from 1864, it's that even new laws are mirroring these 160 year old laws. Many have no exception for rape, incest, or the life of the mother [1]. That's barbaric.
The reason that Democrats find all of this unacceptable is that Republicans have either failed to anticipate the chaotic consequences of their actions, or -- as they argue in court in support for jail terms for people who have abortions, and that doctors should not have exception in the case of life of the mother or rape -- that they intend the chaos and resulting harm to women. As people suffer and die due to their actions, it's not hard to see why rolling back laws to 1864 is objectionable to Democrats.
I appreciate you bringing up EU countries, but if we are striving to emulate them, we should strive to match their maternal mortality rates by providing adequate healthcare to pregnant people [2]. Instead, by upending abortion rights in this country, we are worsening these trends. You can't use the EU as a benchmark if you're not willing to implement EU-like healthcare and social services in the US.
[1] https://www.kff.org/womens-health-policy/issue-brief/a-revie...
[2] https://www.commonwealthfund.org/publications/issue-briefs/2...