Precisely.
To attempt to claim “when life begins” at some point in time is impossible back to conception.
To be unable to determine when life begins is to risk murder with any termination at any point after conception.
That is just too inconvenient for the leftist pro-abortionists. Better, in their minds, not to risk the woman’s choice, and to risk murder.
Then to live the rest of her life in denial of something very important.
I believe the main driving force behind the pro-abortion movement is the need for the HAD-aborts to continue the facade of denial that they committed murder.
Satan is sitting on their left shoulder whispering “God will never forgive you for that.”
He’s a liar, of course.