One of the most popular personal attacks that pro-abortion extremists like to use against pro-lifers is “forced birther.” They appear to like the rhetorical impact of pretending that we are forcing something on someone rather than protecting innocent life. You have a few options when facing that challenge.
The first, and possibly best, is to just ignore them. Sometimes letting the pro-abortionist extremists talk as long and loudly as possible does the most good for the anti-abortion cause. When they talk of babies as intruders, parasites, etc. to justify abortion it exposes their evil to the middle ground.
But you can also turn it around on them by referring to them as “forced deathers.” After all, the human being is coming out of her mother one way or another — dead or alive. She doesn’t just disappear. We aren’t forcing anyone to give birth, we are just saying that you shouldn’t kill unwanted children in any location — even if, in warped pro-abortion extremist logic, they claim to be doing it for the child’s own good (“they might be poor, abused, etc.”). They are the ones forcing death.
And you can also point out that anyone using the “forced birther” ad hominem argument is pro-“partial-birth abortion” (aka infanticide). Since even the majority of those identifying as pro-choice oppose that procedure then those who use that silly term will out themselves as the extremists that they are.