No, it’s not.
You can believe a fetus is the same as a person but the fact of the matter is that a fetus can’t be murdered. That’s just a legal fact. Murder is a crime that is defined by legal means and only happens to persons viewed under the law. You can’t use legal terminology to try and finagle moral issues; the two worlds aren’t compatible.
Anti-choicers can say abortion is murder all they want to but that doesn’t make it true anymore than me saying my cat is actually a unicorn makes it true. There is a difference between factually defined legal terminology and philosophical claims that can never be proven.
Claiming something is murder doesn’t magically make it so. It’s not morally complacent because claiming abortion is murder can’t be a real claim without the fetus having actual rights. Using that term brings it to the legal discussion which I’ve already mentioned is very clear.
You can’t use legal terms when they don’t apply just because it’s convenient to do so.
Your arguments are excellent, I can tell you’re very practiced in debating the abortion issue. But ultimately, this isn’t about the abortion issue. It could be about any number of immoral acts, real or imagined.
When I use the term “murder” it is completely separate from the legal definition. This moral debate is happening completely in an individual’s mind. The individual believes it is equivalent to murder, whether it is or not. That personal belief, regardless of any faulty reasoning, is the key. They believe it is equivalent to murder, yet they do not oppose it.
More common and relevant are those who truly hold this belief and do oppose abortion on that ground. It is my opinion that we cannot be outraged by their opposition, because they are simply acting on what they believe is a moral obligation to protect a life. We can work to educate them, but we should not attack them for pursuing what they believe is truly good.