It's not murder just because she removes it from her body. If the baby can't survive without assistance from the hospital, that isn't the woman's problem.
If somebody required 24/7 life support in order to survive but you were the only person that could possibly provide that life support, nobody would be able to arrest you for refusing to provide that life support. Nobody would even propose to do that.
The wingers are completely inconsistent, hypocritical and illogical.