Earlier quoted context omitted.
Same reason you might want to avoid "rifle" the day after a mass school shooting. The US is in the midst of an "abortion law" crisis (undoing abortion and birth control rights in order put women "back in their place", rolling back half a century of progress), and now is not the time for the word they replaced.
That’s about as fair as a characterisation of that debate as saying “people want to keep R vs. W because they love killing babies”. The simple difference between the sides is one thinks whatever it is that’s in the womb is a human life, the other does not. Both sides’ believe their positions are essentially rooted in compassion — one for the adult, one for (according to their understanding) the child.
And that's the problem: people who have no idea how human biology works pushing for laws that relate to human biology.