This does seem like an odd conversation ... the Constitution as presently written, and codified for over 150 years, limits the powers of the federal government, and really does leave unspecified subjects to the State. That's just the way it is, and that's not a bad thing generally.
What's happened is we are no longer the moral people that we were when the Constitution was written, and we've bought into a lie that the unborn are not protected under the Constitution. If you look at the history of Law in the US, that question didn't even come up until the influence of Evolutionary Theory on bio-ethics and law.
Where we are now is a perfectly good Constitution that keep the Federal Government from being a tyrant, that's a good thing. If that weren't in place, a tyrant could step in and force abortions. I've read some pretty scary stuff in federal law that is written to make it sound as if all of our children don't legally belong to us. If you consolidate power to the federal government, and a liberal is in the chair of power, they could require abortions under nationalized healthcare, as they do in Israel, Russia and China.
The only fix is really to specify the unborn as citizens protected under the Constitution, and then the states are bound. In the meantime, while waiting for an amendment to go through process, recognize that if the 10th were implemented as intended, crossing state lines to have an abortion would not be the simple trick some imagine. Pro-life states are empowered to broker relationships with anti-life bordering states that would address this issue, the legal basis for that is already in the Constitution if we'd just dust it off and use it.
I think a conservative estimate of the numbers projects a 50% drop in abortion in the US within the first year alone, probably higher, when states are allowed to pass their own legislation and roe v. wade is rendered irrelevant. That's millions of lives my friend. And the number will continue to drop as pro-lifers in liberal states are encouraged by the success of their neighboring states, and the conservative majority can vote without fear of a liberal federal judge overturning their decision.
I know its not the brass ring, it's not 100% in a day. There is not way short of tyranny for that to happen, and even then it will continue illegally just like drugs. I'd consider it a huge victory for life to reduce the problem to half of what it is now.