When people record television broadcasts, they still say, "I taped the game last night," but that doesn't mean they're still using VHS. People regularly use layman's terms to express themselves, even if what they're saying is not technically accurate. If you want your arguments to be taken seriously, it's a good idea to use the correct terminology, because refusing to do so after being corrected multiple times just shows that you're not being intellectually serious about making your case.
No, starting to use the terminology that baby killers use to justify murder is something I'm never going to do. Killing babies is wrong. I don't give two fucks if I'm not taken seriously by them. I'll probably just end up putting every single abortion supporter on ignore because I don't need to associate with evil people.