If you are calling everyone who believes in legal abortion and supports Roe v. Wade an "ultra-leftist", then I guess your argument might hold water. Not really, but now I see what you meant.
FWIW, I've never met anyone who professes to be "pro-abortion",

, just people who think that abortions should be performed by MDs instead of in an alley. Abortion is a terrible thing.
How about if I start refering to you as "pro-dead U.S. soldiers for one party's political gain/failed foreign policy"......, would that be OK? I'm sure you won't mind me defining your views for you, I mean fair is fair, right?