> But that time, emancipation happened immediately after they got full power, there was no need to give money to racists, and no moral compromises were required.

I really hope you were being sarcastic here... Emancipating the slaves during/after the Civil War was not an orderly, immediate process. And even once all slaves were freed, they continued to live second-class lives due to the laws of the time.

Yes, it's sarcasm. I'm contrasting how Britain made their legal process gradual enough to match reality with the USA's demand that legal processes create reality.

For reference, fully elective abortion legally doesn't exist in most of the UK. It's just that a fetus being dangerous to the mental health of the mother has progressively been interpreted more and more broadly...

https://en.wikipedia.org/wiki/Abortion_in_the_United_Kingdom