Come on, pick holes in your own arguments. Slogans are slogans - they're invariable over condensed bullshit in the end but serve a purpose. Prohibition wasn't replaced by total freedom - there are still age limits, DUI laws, bar closing times, state alcohol stores, dry counties. Vaccines have been mandatory for a lot of diseases for a long time - most of them for being contagious and deadly/debilitating to others. Measles, mumps, polio, even the ill-fated swine flu. The draft was law for American self-defense for ages - nothing about "my body, my choice" - your country called, you did your 2 years. This finally ended due to enough volunteer enlistment and no more large wars - or it would start over.

Abortion is still regulated and will always have limits. A fetus becomes a human before birth - we've been working on a valid, scientific and legal framework where it makes sense, both for the possible baby and the mother. Killing someone else's foetus obviously is not legal, so there are repercussions for punching a pregnant woman in the stomach. There are many foetuses that aren't viable, that will be completely damaged outside the womb, so there's a societal calculation in allowing that budding life to be terminated early - pain & suffering outweighing any benefit of existence.

And then there's an issue that's largely ignored - ignoring rape, women bear the burden of childbearing risk, especially marriage as the presumptive precursor (or quickly-to-follow) condition for sex and pregnancy faded to open sex. Conservatives have largely abandoned any pretense of sanity by making contraceptive difficult, and for the many who pretend to be scientific, their opposition to the decades old "morning after" pill RU-486 also makes little sense. But the state of contraception also requires women take pills that badly fuck up their hormones for years, or rely on devices that are both technically imperfect/life-changing misses and the reality is that men are often driving the sexual encounter so women dont have the option to make things careful and choice-driven. And it's a weird dichotomy - we spend a lot of societal effort on getting women to spread their legs, including a whole bar and vacation scene based on some implicit alcohol-driven rapey "lowering inhibitions" as well as trillions in advertising persuasion, and then if they become pregnant as a result, we expect it to be scientific and an intellectual/medically focused exercise, with the dudes largely exempt from participation, especially if they deny it.

So there's a bigger tilted social issue that's being ignored in shrinking the question down to 15 weeks or not. I haven't seen the court arguments, but it'd be good to see the breakdown of a typical pregnancy discovery and how long practically a decision and arrangements for abortion take - especially if the state gets in the way, including closing all but 1 abortion clinics.