Leftists are for abortion because they believe they have the right to kill some people for the "benefit" of other people, primarily themselves. They hate Capital Punishment, at least that CP adjucated by courts that don't act according to their direction, because they know they are transgressing societal and natural norms and fear retribution i.e. they worry that the society they are eroding will impose capital punishment on them. Abortion is okay because they are already beyond its reach, being born and adult.
You speak my language with erudition.
Thank you. If I’m elected to dog catcher, you will be my press secretary.