Responses
Pro-abortion supports the right to and availability of abortions. Theres no one saying we should abort all babies. So, no, the opposite of prolife isn't pro abortion.
The closest thing would be antinatalism, but even if you're being generous, trying to compare any of these ideologies against each other is misleading at best and irresponsible at worst

Woah, I'm like genuinely scared that society has moved so far past "pro-choice" that people are claiming to be "pro-abortion". O.o That's just the extreme opposite of pro-life; keyword here being *extreme*. Let's just live in a world of happy mediums and let people make the choice that is best for them.