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