Genuinely, here's what I think it takes away from you: the ability to draw a clear line and analyse the connection between the class of people who were denied the vote, who were denied equal education, career opportunities and economic independence, who could not obtain a mortgage in their own right even if they managed to scrabble some of those things to themselves, who were defined as chattels of men, whom it was legal to rape within marriage until the 1980s in the UK (etc. etc. etc.) and the people now being denied abortions.
All of those things were done to women because they are women and all of that history and those societal attitudes were visited on women because they are women. It is desperately important context for what is currently being done around abortion rights in order to analyse and understand the reasons this is happening and what it has led to before. Abortion rights are under attack as much because they affect women as a class (regardless of whether or not all women can become pregnant) as any other consideration, and traditionally it has been fine to outrageously disadvantage women without any second thought, particularly if it serves men, and that attitude remains very relevant and insidiously pervasive.
An analogy to my mind is acknowledging that the Holocaust was genocide of Jews but then suggesting that the Labour party recently had a problem with "people who smash glasses under foot at weddings, people who wear a kippah and people who are circumcised". I mean...sort of correct as far as it goes, I suppose, but it misses out a lot of the class and includes some people in it who shouldn't be in it and makes it fucking difficult to be able to conduct a class analysis and clearly state that what we're dealing with is exactly the same old prejudice - against exactly the same class of people - that's been kicking around for hundreds or thousands of years.
It's the same problem for many of the same reasons and we need to be able to clearly articulate that if we have any hope of solving the ever-recurring issue.