Different interpretations then on if it is murder or not. Ultimately just more imposing one’s own view on others.
That's the definition of law and order. Society decides what is and isn't acceptable, passes laws and imposes the will of the people.
If we start with the premise that murder is wrong and work back, eventually we get to teens, preteens, toddlers and babies.
You still with me? That's still clearly wrong, agreed?
So take whatever baby, and they kill it the day before. Still not OK, with me?
The day before that?
How far back do you want to go before you say "OK, kill it!"?
If your claim is on viability then you're into the ~24 week territory.
If you want to be taken seriously, you have to have serious reason to your claims. Throwing your arms up and saying "any abortion should be allowed" is clearly monstrous, barbaric, and indefensible.